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- Title
- A MATTER OF PERSPECTIVE: HOW CAMERA POSITIONING INFLUENCES MEMORY FOR EVERYDAY EVENTS.
- Creator
- Hagen, Allen C., Kersten, Alan, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
The current study examined how viewing an event from different perspectives (eye-level and elevated) at both encoding and retrieval changes the recognition of that event. Specifically, participants were shown various manipulations to the scenarios that they witnessed at encoding. The primary focus of the study was the participants’ ability to identify old scenarios along with scenarios that had been manipulated through differences in character clothing, object placement, or temporal order of...
Show moreThe current study examined how viewing an event from different perspectives (eye-level and elevated) at both encoding and retrieval changes the recognition of that event. Specifically, participants were shown various manipulations to the scenarios that they witnessed at encoding. The primary focus of the study was the participants’ ability to identify old scenarios along with scenarios that had been manipulated through differences in character clothing, object placement, or temporal order of events, while still resembling the old scenario in every other way. No support was found to support the prediction that perspective at either encoding or retrieval had an effect on recognition of the scenario or the different manipulation types. An exploratory analysis revealed a trend towards significance for perspective at encoding. An eye-level perspective at encoding was more likely to result in a higher rejection rate for temporal manipulations.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014217
- Subject Headings
- Memory, Perspective
- Format
- Document (PDF)
- Title
- BRIEF EXPOSURE TO A NOVEL CONTEXT ENHANCES CONSOLIDATION OF OBJECT MEMORY IN C57BL/6J MICE.
- Creator
- Hindman, Brandon L., Stackman Jr., Robert W., Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
Previous research revealed that episodic memories are more likely to be consolidated if something novel occurs in relative temporal proximity to the original learned event (Dunsmoor, Murty, Davachi, & Phelps, 2015). Further, research conducted with rodents has revealed that novel contextual exposure following encoding of a spatial memory in a food-motivated task results in enhanced consolidation of that spatial memory (Takeuchi, Duszkiewics, Sonneborn et al., 2016). The present study sought...
Show morePrevious research revealed that episodic memories are more likely to be consolidated if something novel occurs in relative temporal proximity to the original learned event (Dunsmoor, Murty, Davachi, & Phelps, 2015). Further, research conducted with rodents has revealed that novel contextual exposure following encoding of a spatial memory in a food-motivated task results in enhanced consolidation of that spatial memory (Takeuchi, Duszkiewics, Sonneborn et al., 2016). The present study sought to examine the influence of novel context exposure on non-spatial object memory in adult female and male C57BL/6J mice when novel context exposure follows encoding of object memory under two memory strength training protocols. Results revealed that regardless of memory strength or gender, subjects exposed to a novel context following encoding of object memory exhibited greater exploration of the novel object when assessed 23.5 h later. Thus, novel context exposure significantly enhanced the consolidation of recently encoded object memory. As novel context exposure has been shown to increase dopamine release in the hippocampus, these results are consistent with the theory of synaptic tag and capture, whereby activated dopaminergic afferents enhance the on-going consolidation of non-spatial object memory. Future studies will entail parsing potential neurotransmitter modulatory afferents via pharmacological antagonists.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013377
- Subject Headings
- Memory, Episodic memory, Neurons, Afferent, Dopamine, Mice
- Format
- Document (PDF)
- Title
- The effect of age on processing family, famous and novel faces: An fMRI study.
- Creator
- Jones, Lana Casey, Florida Atlantic University, Tuller, Betty, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Facial recognition memory is a specialized system in the human brain, with an effect of familiarity playing a role in the brain activations involved. Previous studies examining the familiar face processing system have used college-aged subjects. However, memory disorders, like those associated with Alzheimer's disease, typically affect adults over sixty. In an attempt to reveal possible differences between young and older adults', two different age groups were subjected to fMRI analysis while...
Show moreFacial recognition memory is a specialized system in the human brain, with an effect of familiarity playing a role in the brain activations involved. Previous studies examining the familiar face processing system have used college-aged subjects. However, memory disorders, like those associated with Alzheimer's disease, typically affect adults over sixty. In an attempt to reveal possible differences between young and older adults', two different age groups were subjected to fMRI analysis while viewing face images with varying familiarity (family, famous and novel). The result showed a significant difference in activations for various cortical areas including the precuneus, cingulate cortex, and fusiform gyrus. Among the differences, an overall trend of greater activation in the left hemisphere for younger subjects compared to the older group was revealed. The results have implications for the study of memory disorders afflicting older adults, like Alzheimer's disease.
Show less - Date Issued
- 2006
- PURL
- http://purl.flvc.org/fcla/dt/13358
- Subject Headings
- Brain--Magnetic resonance imaging, Evoked potentials (Electrophysiology), Memory, Cognition--Age factors, Aging--Psychological aspects, Memory disorders in old age
- Format
- Document (PDF)
- Title
- Effects of Emotionally Valenced Objects on Associative Memory of Events.
- Creator
- Pugh, Lindsey, Kersten, Alan, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
Kersten et al. (2021) revealed that participants remembered negatively valenced actions better than neutral actions, but did no better at binding negative actions with the people who performed them compared to neutral actions. We were interested in testing whether emotion only enhances memory for individual features of an event, or whether emotion can also enhance binding of certain combinations of features. In particular, we tested the effect of emotionally charged objects on the ability to...
Show moreKersten et al. (2021) revealed that participants remembered negatively valenced actions better than neutral actions, but did no better at binding negative actions with the people who performed them compared to neutral actions. We were interested in testing whether emotion only enhances memory for individual features of an event, or whether emotion can also enhance binding of certain combinations of features. In particular, we tested the effect of emotionally charged objects on the ability to remember those objects and the actions associated with them. Participants saw a series of brief videos each involving an actor performing one of two different actions on one of two objects within a specific object category (e.g., guns or piñatas), some objects neutral in valence, some positive, and some negative. Participants were later tested on their ability to distinguish old events from novel conjunctions of particular objects with the actions that had been previously performed with the other members of the same object categories. Although only marginally significant, participants appeared more able to bind objects with their associated actions when those objects held a negative charge compared to neutral objects. Additionally, participants were more sensitive to changes in actions when those actions were associated with negative objects compared to neutral or positive objects. However, false memory increased when new negative objects were presented compared to novel presentation of neutral or positive objects.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014069
- Subject Headings
- Emotions, Memory, Valence
- Format
- Document (PDF)
- Title
- The effects of language proficiency and task type on executive function and working memory performance in bilingual adults.
- Creator
- Lalwani, Laxmi N., Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Research shows that bilingualism confers substantial cognitive benefits in children and the elderly. Bilingual advantages on nonverbal working memory, updating, shifting and inhibition tasks are widely reported. However, advantages are not always observed in young adults. These disparities may be due to varied proficiency levels and task types (verbal versus nonverbal) administered. This study sought to detect bilingual performance advantages on executive function and working memory tasks ...
Show moreResearch shows that bilingualism confers substantial cognitive benefits in children and the elderly. Bilingual advantages on nonverbal working memory, updating, shifting and inhibition tasks are widely reported. However, advantages are not always observed in young adults. These disparities may be due to varied proficiency levels and task types (verbal versus nonverbal) administered. This study sought to detect bilingual performance advantages on executive function and working memory tasks (verbal and nonverbal working memory, updating, shifting and inhibition tasks) between groups of 37 high and 37 low proficiency Spanish-English bilingual and 40 English monolingual young adults. ... Young adulthood may represent a lull during which bilingualism does not confer cognitive advantages for functions examined.
Show less - Date Issued
- 2012
- PURL
- http://purl.flvc.org/FAU/3358602
- Subject Headings
- Bilingualism, Psychological aspects, Psycholinguistics, Cognition, Memory, Cognitive psychology
- Format
- Document (PDF)
- Title
- The influence of motion type on memory of simple events.
- Creator
- Berger, Johanna D., Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
This experiment investigated an individual's memory of specific motion events, unique actor, intrinsic motion, and extrinsic motion combination. Intrinsic motions involve the movement of an individual's body parts in a specific manner to move around, while extrinsic motions specify a path in reference to an external object. Participants viewed video clips, each depicting an actor performing a unique extrinsic and intrinsic motion combination. One week later, they viewed a different series of...
Show moreThis experiment investigated an individual's memory of specific motion events, unique actor, intrinsic motion, and extrinsic motion combination. Intrinsic motions involve the movement of an individual's body parts in a specific manner to move around, while extrinsic motions specify a path in reference to an external object. Participants viewed video clips, each depicting an actor performing a unique extrinsic and intrinsic motion combination. One week later, they viewed a different series of retrieval video clips consisting of old (identical to encoding), extrinsic conjunction (extrinsic motion previously performed by different actor), intrinsic conjunction (intrinsic motion previously performed by different actor), and new (novel extrinsic or intrinsic motion) video clips. Participants responded "yes" to viewing the old video clips the most often, followed by conjunction video clips, and then new video clips. Furthermore, there were a greater number of "yes" event memory recognition responses for extrinsic conjunction items than intrinsic conjunction items.
Show less - Date Issued
- 2009
- PURL
- http://purl.flvc.org/FAU/186673
- Subject Headings
- Recollection (Psychology), Context effects (Psychology), Memory, Research, Human information processing, Research, Transference (Psychology), Motion segmentation
- Format
- Document (PDF)
- Title
- Influence of small conductance calcium-activated potassium channels (SK,Kca2) on long-term memory: global and local analysis across time- and task- dependent measures.
- Creator
- Vick, Kyle A., Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Small conductance calcium-activated potassium (SK) channels are found ubiquitously throughout the brain and modulate the encoding of learning and memory. Systemic injection of 1-ethyl-2-benzimidalzolinoe (EBIO), a SK channel activator, impairs the encoding of novel object memory and locomotion but spares fear memory encoding in C57BL/6NHsd mice. The memory impairments discovered were not due to non-cognitive performance confounds such as ataxia, anxiety, attention or analgesia. Further...
Show moreSmall conductance calcium-activated potassium (SK) channels are found ubiquitously throughout the brain and modulate the encoding of learning and memory. Systemic injection of 1-ethyl-2-benzimidalzolinoe (EBIO), a SK channel activator, impairs the encoding of novel object memory and locomotion but spares fear memory encoding in C57BL/6NHsd mice. The memory impairments discovered were not due to non-cognitive performance confounds such as ataxia, anxiety, attention or analgesia. Further investigation with intra-hippocampal application of EBIO revealed SK channels in dorsal CA1 contribute to the encoding deficits seen systemically, but do not account for the full extent of the impairment. Concentrated activation of dorsal CA1 SK channels do not influence fear memory encoding or locomotor impairments. Taken together, these data indicate SK channels, especially in the dorsal hippocampus, have a modulatory role on novel object memory encoding, but not retrieval; however, pharmacological activation of hippocampal SK channels does not appear to influence fear memory encoding.
Show less - Date Issued
- 2009
- PURL
- http://purl.flvc.org/FAU/192991
- Subject Headings
- Mice as laboratory animals, Cellular signal transduction, Memory, Research, Biological transport, Research, Potassium channels, Physiological effect
- Format
- Document (PDF)
- Title
- INVESTIGATING THE NEURAL CIRCUITRY SUPPORTING OBJECT RECOGNITION MEMORY IN C57BL/6J MICE.
- Creator
- Cinalli Jr., David A, Stackman, Jr., Robert W., Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
The hippocampus, a brain region that is part of the limbic system in the medial temporal lobe, is critical to episodic memory, or the memory of autobiographical events. The hippocampus plays an important role in the consolidation of information from short-term memory into more permanent long-term memory and spatial memory which enables navigation. Hippocampal damage in humans has been linked to memory loss, such as in Alzheimer’s disease and other dementias, as well as in amnesia such as in...
Show moreThe hippocampus, a brain region that is part of the limbic system in the medial temporal lobe, is critical to episodic memory, or the memory of autobiographical events. The hippocampus plays an important role in the consolidation of information from short-term memory into more permanent long-term memory and spatial memory which enables navigation. Hippocampal damage in humans has been linked to memory loss, such as in Alzheimer’s disease and other dementias, as well as in amnesia such as in the case of patient H.M. The role of the hippocampus has been well characterized in humans but is less understood in rodents due to contradictory findings. While rodents have served well as model organisms in developing our understanding of the cognitive map that is critical for spatial navigation, there has been substantial contention over the degree to which the rodent hippocampus supports non-spatial memory, specifically the memory for items or objects previously encountered. The overall objective of this research is to gain a better understanding of how neuronal circuits involving the hippocampus and perirhinal cortex function to support object memory in the brain. Chemogenetic technologies such as DREADDs (designer receptor exclusively activated by designer drugs) have proven to be effective tools in remote manipulation of neuronal activity. First, a series of behavioral tasks was used to validate the effects of DREADD inactivation in the CA1 region of dorsal hippocampus in C57BL/6J male mice. DREADD inhibition resulted in significant impairment in the spontaneous object recognition (SOR) task and of spatial memory in the Morris water maze. In conjunction, mice were implanted with bilateral perirhinal cortex guide cannulae to allow for temporary muscimol inactivation during distinct time points in the SOR task to further investigate the nature of its relationship with the hippocampus. The results reveal an unexpected role for the perirhinal cortex in the retrieval of strong object memory. Finally, Arc mRNA expression was quantified in CA1 of dorsal hippocampus and perirhinal cortex following both weak and strong object memory formation. The results indicate that the perirhinal cortex and hippocampus have distinct, yet complementary roles in object recognition memory and that distinction is gated by memory strength. Understanding the neural mechanisms supporting the weak-strong object memory distinction in mice is an important step not only in validating mice as a suitable model system to study episodic memory in humans, but also in developing treatments and understanding the underlying causes of diseases affecting long-term memory such as Alzheimer’s disease.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013571
- Subject Headings
- Neural circuitry, Hippocampus, Perirhinal Cortex, Memory, Mice, Inbred C57BL
- Format
- Document (PDF)
- Title
- Memory for emotional and non-emotional events.
- Creator
- Butler, Leslie A., Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
This experiment was designed to investigate the effect of emotion on an individual's ability to bind actors and actions in memories for events. Binding is the process of creating associations among features of a stimulus in order to represent that they belong together; however, errors can occur when a feature from one stimulus is incorrectly associated with a feature from another stimulus. Participants viewed a series of video clips, each depicting an actor performing a simple emotional or...
Show moreThis experiment was designed to investigate the effect of emotion on an individual's ability to bind actors and actions in memories for events. Binding is the process of creating associations among features of a stimulus in order to represent that they belong together; however, errors can occur when a feature from one stimulus is incorrectly associated with a feature from another stimulus. Participants viewed a series of video clips, each depicting an actor performing a simple emotional or non-emotional action. One week later, they viewed a series of retrieval video clips consisting of old, (previously seen), conjunction (previously seen action performed by a different actor) and also new video clips. Participants responded "yes" to viewing the old clips the most, followed by both conjunction clips, and then new clips. Participants also responded "yes" more often to emotional items and also displayed higher confidence ratings to "yes" responses for emotional items.
Show less - Date Issued
- 2009
- PURL
- http://purl.flvc.org/FAU/221946
- Subject Headings
- Recollection (Psychology), Memory, Physiological effects, Emotions, Physiological effects, Emotion and cognition
- Format
- Document (PDF)
- Title
- MEMORY FOR TRIVIA FACTS AND SOURCE IDENTITY: EFFECTS OF EMOTION AND SOURCE CHARACTERISTICS.
- Creator
- St. Peter, Krystal S., Kersten, Alan, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
Individuals are constantly being exposed to new information and new situations, but memory for these events is not always equal; understanding the factors that affect an individual’s ability to remember the details surrounding these events is extremely important. The purpose of the current study was to examine the potential effects of emotion and source characteristics, such as age and gender, on memory for factual information (i.e., trivia facts) and source identity (i.e., the sources of the...
Show moreIndividuals are constantly being exposed to new information and new situations, but memory for these events is not always equal; understanding the factors that affect an individual’s ability to remember the details surrounding these events is extremely important. The purpose of the current study was to examine the potential effects of emotion and source characteristics, such as age and gender, on memory for factual information (i.e., trivia facts) and source identity (i.e., the sources of the information). One hundred and twenty-eight undergraduate students viewed a total of 120 videos depicting eight different sources (two young adult males, two young adult females, two older adult males, and two older adult females) presenting neutral and emotional (positive, negative) trivia facts; participants were then asked to complete a fill-in-thevi blank test on memory for trivia facts and a multiple-choice test on memory for the source of each fact. Results indicated that positively valenced trivia facts were remembered more often than both neutral and negatively valenced facts; emotion was not found to affect memory for the sources of trivia facts or memory for the relationship between trivia fact and source. Results indicated that trivia facts presented by female sources were remembered better than facts presented by male sources; source gender also affected memory for the sources of each fact, such that sources of facts presented by females were remembered better than the source identity for a fact presented by a male source. When the identity of the source was forgotten, participants were more likely to falsely attribute the fact to someone of the same age as the original source. If the original source was female, participants were also more likely to falsely attribute that fact to another female source compared to a male source, but if the original source was male, participants were equally likely to misattribute the source of either gender. The findings from the current study add to the current understanding of the complex effects of emotion on memory and suggest the importance
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013739
- Subject Headings
- Memory, Emotion
- Format
- Document (PDF)
- Title
- Remembering the future: individual differences in metacognitive representation predict prospective memory performance on time-baseed [sic] and event-based tasks in early childhood.
- Creator
- Causey, Kayla B., Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Prospective memory is remembering to perform an action in the future, such as attending a meeting (a time-based task) or picking up milk at the gas station (an eventbased task), and is crucial to achieving goal-directed activities in everyday life. Children who fail to develop prospective memory abilities are likely to experience difficulties interacting with parents, teachers, and peers. To date, research on prospective memory development has been primarily descriptive or focused on...
Show moreProspective memory is remembering to perform an action in the future, such as attending a meeting (a time-based task) or picking up milk at the gas station (an eventbased task), and is crucial to achieving goal-directed activities in everyday life. Children who fail to develop prospective memory abilities are likely to experience difficulties interacting with parents, teachers, and peers. To date, research on prospective memory development has been primarily descriptive or focused on underlying executive functioning. This dissertation investigated the developmental relationship between metacognitive representation and prospective memory in preschool and elementary school children and adults. Findings from Study 1 indicated that individual differences in representational ability independently predicted individual differences in 3-year-olds' performance on event-based tasks that are of low-interest. Qualitative changes are important to consider when modeling prospective memory develop ment, as with episodic memory. Study 2 presents findings based on a study using the CyberCruiser 2.0, an Xbox-style racing game designed to assess time-based prospective memory. This study confirmed that kindergarten children are capable of completing this time-based prospective memory task but revealed that performance improved with age. Between kindergarten and 2nd grade, children become better aware of their own mental processes and abilities, allowing them to adjust their strategies and perform more comparable to adults. As a result, in this study, younger children tended to overestimate their prospective memory abilities and were less likely to monitor passing time, causing them to fail more time-based task trials than older children and adults., Similarly, participants who underestimated the costs of prospective memory failed more time-based tasks relative to those who more accurately assessed these costs. Although this latter relationship was limited to adults, it suggests that a poor metacognitive understanding of the costs of prospective memory may result in missed opportunities to carry out a delayed intention if individuals fail to allocate attentional resources appropriately. These findings have theoretical implications for models of prospective memory and development. Practical implications for educating children are also discussed.
Show less - Date Issued
- 2010
- PURL
- http://purl.flvc.org/FAU/2974431
- Subject Headings
- Metacognition, Memory, Pyschological aspects, Social psychology, Cognition in children
- Format
- Document (PDF)
- Title
- Temporal organization of memory strategies on a sort/recall task.
- Creator
- Park, Cynthia Louise Smith, Florida Atlantic University, Bjorklund, David F., Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
This study examined the temporal structure of children's study behaviors on a sort/recall task. Forty-two fifth-grade children were given six sort/recall trials, each consisting of a two-minute study period followed by a recall assessment. Three trials used the same word list on each trial, while three trials used different word lists on each trial. Half of the participants received the different word list trials first while the order was reversed for the remaining participants. Results were...
Show moreThis study examined the temporal structure of children's study behaviors on a sort/recall task. Forty-two fifth-grade children were given six sort/recall trials, each consisting of a two-minute study period followed by a recall assessment. Three trials used the same word list on each trial, while three trials used different word lists on each trial. Half of the participants received the different word list trials first while the order was reversed for the remaining participants. Results were analyzed for differences between recall groups, type of word list used, and presentation order of the trials. High recallers demonstrated stronger temporal patterns of study behaviors than did low recallers (as measured by Fourier analysis of time series data). High recallers also showed stronger tendencies to use behaviors that facilitated performance in close temporal proximity. Type of word list affected recall and temporal patterns of a portion of the study behaviors analyzed.
Show less - Date Issued
- 1998
- PURL
- http://purl.flvc.org/fcla/dt/15580
- Subject Headings
- Study skills, Recollection (Psychology), Memory
- Format
- Document (PDF)
- Title
- THE IMPACT OF DESCRIBING ACTORS AND ACTIONS ON SOURCE MEMORY.
- Creator
- Frank, Colin S., Kersten, Alan, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
This research is a first step towards investigating the impact verbal descriptions can have on an individual’s memory for actors performing actions. Previous research has found that verbal descriptions of mugshot-esque, face stimuli can have either a facilitative or inhibitory effect on later recognition. The current study implemented the Person Action Conjunction (PAC) test, along with three separate groups where participants provided descriptions of actions, features of the actors, and...
Show moreThis research is a first step towards investigating the impact verbal descriptions can have on an individual’s memory for actors performing actions. Previous research has found that verbal descriptions of mugshot-esque, face stimuli can have either a facilitative or inhibitory effect on later recognition. The current study implemented the Person Action Conjunction (PAC) test, along with three separate groups where participants provided descriptions of actions, features of the actors, and holistic attributes of the actors. The results demonstrated that the description group impacted the attention placed on either the action or actor, causing participants to remember those described elements more. Furthermore, it was found that accurately recalling descriptions provided at encoding was significantly and positively correlated with recognition performance. Further research is necessary with different control conditions before an impact of verbal description on the memory for actors and actions can be known.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013635
- Subject Headings
- Memory, Recognition
- Format
- Document (PDF)
- Title
- THE INFLUENCE OF EVENT SEGMENTATION ON MEMORY FOR ACTORS AND THEIR ACTIONS.
- Creator
- Smithwick, Megan S., Kersten, Alan, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
Previous research indicates that event boundaries can hinder or facilitate memory. The present study aimed to examine the influence of physical context changes (i.e., event boundaries) on the memory for actors and the actions they performed. Undergraduate participants (N=121) from Florida Atlantic University viewed two different video clip set types of actors performing various actions. The continuous context (CC) video set type included four different actors performing actions in the same...
Show morePrevious research indicates that event boundaries can hinder or facilitate memory. The present study aimed to examine the influence of physical context changes (i.e., event boundaries) on the memory for actors and the actions they performed. Undergraduate participants (N=121) from Florida Atlantic University viewed two different video clip set types of actors performing various actions. The continuous context (CC) video set type included four different actors performing actions in the same physical context. The discontinuous context (DC) video set type contained four actors, the first, second, and fourth actors shown in each set performed actions in the same physical context (e.g., a library), while the third actor in the set performed an action in a different physical context (e.g., a playground). After viewing the videos, memory for the actors and the actions was evaluated using the Person-Action-Conjunction (PAC) test in a retrieval session. Participants provided significantly more ‘yes’ responses to old item than to conjunction items at retrieval. No significant differences in the proportion of ‘yes’ were found between the CC video items and DC video items. These results could be due to the manipulation of physical context not being sufficiently strong to influence event segmentation.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013866
- Subject Headings
- Memory, Memory--Research
- Format
- Document (PDF)
- Title
- Uncovering the role of the rodent dorsal hippocampus in spatial and object memory retrieval.
- Creator
- Rios, Lisa, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Male C7BL/6J mice were implanted with bilateral dorsal CA1 guide cannulae. After confirming that intrahippocampal microinfusion of muscimol impaired hippocampal function, demonstrated by impaired performance in the Morris water maze, the influence of intrahippocampal muscimol was tested in the Novel Object Recognition paradigm. During a test session 24 h after the last habituation/sample session, mice were presented with one familiar object and one novel object. Successful retention of object...
Show moreMale C7BL/6J mice were implanted with bilateral dorsal CA1 guide cannulae. After confirming that intrahippocampal microinfusion of muscimol impaired hippocampal function, demonstrated by impaired performance in the Morris water maze, the influence of intrahippocampal muscimol was tested in the Novel Object Recognition paradigm. During a test session 24 h after the last habituation/sample session, mice were presented with one familiar object and one novel object. Successful retention of object memory was inferred if mice spent more time exploring the novel object than the familiar object. Results demonstrate that muscimol infused into dorsal CA1 region prior to the test session eliminates novel object preference, indicating that the hippocampus is necessary for the retrieval of this non-spatial memory - a topic that has garnered much debate. Understanding the similarities between rodent and human hippocampal function could enable future animal studies to effectively answer questions about diseases and disorders affecting human learning and memory.
Show less - Date Issued
- 2011
- PURL
- http://purl.flvc.org/FAU/3172696
- Subject Headings
- Rodents as laboratory animals, Memory, Research, Cellular signal transduction, Cognitive neuroscience, Hippocampus (Brain), Space perception
- Format
- Document (PDF)