Current Search: Perception (x)
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Pages
- Title
- Cross-modality correspondences are not an innate aspect of perception: synaesthesia emerges late in infancy.
- Creator
- Minar, Nicholas J., Graduate College
- Date Issued
- 2013-04-12
- PURL
- http://purl.flvc.org/fcla/dt/3361331
- Subject Headings
- Synesthesia, Lewkowicz, David J., Perception, Perception in infants
- Format
- Document (PDF)
- Title
- Intrinsic Motion and Background Stimuli in Event Representation.
- Creator
- Kelly, Roshawn D., Kersten, Alan, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Intrinsic motion pertains to the relative movements of a character’s body parts while mobile, while extrinsic motion pertains to those movements in relation to external landmarks. The current study aimed to explore whether the removal of identifiable features of a person (race and color of clothing) would force witnesses to move their focus to extrinsic motion. Previous studies regarding the concept of intrinsic and extrinsic motion have found that witnesses are more likely to encode...
Show moreIntrinsic motion pertains to the relative movements of a character’s body parts while mobile, while extrinsic motion pertains to those movements in relation to external landmarks. The current study aimed to explore whether the removal of identifiable features of a person (race and color of clothing) would force witnesses to move their focus to extrinsic motion. Previous studies regarding the concept of intrinsic and extrinsic motion have found that witnesses are more likely to encode intrinsic motion with the identity of a person, while extrinsic motion is encoded separately. This made it easier for participants to recognize an actor based on their manner of movement, rather than where the actor was initially seen. By silhouetting the actors and manipulating the background they were shown in later, the current study was able to identify a negative impact on recognition ability when actors were shown against a background they were not initially shown against while silhouetted. The implications of these results are discussed.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013224
- Subject Headings
- Unconscious perception, Subliminal perception, Recognition, Human movements, Body language
- Format
- Document (PDF)
- Title
- THE INFLUENCE OF CONTEXT AND PERCEPTUAL LOAD ON OBJECT RECOGNITION.
- Creator
- Islam, Mohammed, Barenholtz, Elan, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Forster and Lavie (2008) and Lavie, Lin, Zokaei and Thoma (2009) have demonstrated that meaningful stimuli, such as objects, are ignored under conditions of high perceptual load but not low. However, objects are seldom presented without context in the real world. Given that context can reduce the threshold for object recognition (Barenholtz, 2013), is it possible for context to reduce the processing load of objects such that they can be processed under high load? In the first experiment, I...
Show moreForster and Lavie (2008) and Lavie, Lin, Zokaei and Thoma (2009) have demonstrated that meaningful stimuli, such as objects, are ignored under conditions of high perceptual load but not low. However, objects are seldom presented without context in the real world. Given that context can reduce the threshold for object recognition (Barenholtz, 2013), is it possible for context to reduce the processing load of objects such that they can be processed under high load? In the first experiment, I attempted to obtain similar findings of the aforementioned studies by replicating their paradigm with photographs of real-world objects. The findings of the experiment suggested that objects can cause distractor interference under high load conditions, but not low load conditions. These findings are opposite of what the perceptual literature suggests (e.g., Lavie, 1995). However, these findings are aligned with a two-stage dilution model of attention in which information is first processed in parallel and then selectively (Wilson, Muroi, and MacLeod, 2011). Experiment 2 assessed if this effect was specific to semantic objects by introducing meaningless, abstract objects. The results suggest that the dilution effect was not due to the semantic features of objects. The third experiment assessed the influence of context on objects under load. The results of the experiment found an elimination of all interference effects in both the high and low load conditions. Comparisons between scene-object congruency revealed no influence of semantic information from scenes. It appears that the presentation of a visual stimuli prior to the flanker task diluted attention such that the distractor effects previously observed in the high load condition were minimized. Thus, it does not appear that context reduced the threshold for object recognition under load. All three experiments have demonstrated strong evidence for the dilution approach of attention over perceptual load models.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013319
- Subject Headings
- Perception--Research, Selective attention, Form perception, Context effects (Psychology)
- Format
- Document (PDF)
- Title
- Competing mechanisms in the perception of apparent motion: Effects of zero-hertz and time-varying energy.
- Creator
- Kogan, Kristine Marie, Florida Atlantic University, Hock, Howard S., Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
Anstis, et al. (1985) have reported that under certain conditions the visual system adapts and the perception of apparent motion breaks down. The present research indicates that breakdown is actually a result of same-place mechanisms successfully competing with motion-detecting mechanisms. Thus, the perception of stationarity (with flicker) can occur at the start of a trial and spontaneously switch to the perception of motion, or vice versa. The response of same-place mechanisms depends on...
Show moreAnstis, et al. (1985) have reported that under certain conditions the visual system adapts and the perception of apparent motion breaks down. The present research indicates that breakdown is actually a result of same-place mechanisms successfully competing with motion-detecting mechanisms. Thus, the perception of stationarity (with flicker) can occur at the start of a trial and spontaneously switch to the perception of motion, or vice versa. The response of same-place mechanisms depends on the zero-hertz energy at each location of an apparent motion stimulus, whereas the response of motion mechanisms depends on the time-varying energy. Average luminance, luminance contrast, the temporal symmetry of the apparent motion display, and relative phase are manipulated to investigate competition between same-place and motion-detecting mechanisms.
Show less - Date Issued
- 1995
- PURL
- http://purl.flvc.org/fcla/dt/15234
- Subject Headings
- Motion perception (Vision), Perceptual-motor processes, Visual perception
- Format
- Document (PDF)
- Title
- THE SPATIAL FRAMEWORK OF FORM PERCEPTION: INDIVIDUAL DIFFERENCES WITH RESPECT TO PHENOMENAL AND RETINAL DETERMINATION OF SPATIAL REFERENCE.
- Creator
- GOLD, LEON SAMUEL, Florida Atlantic University
- Abstract/Description
-
Rock's procedure for separating the effect of objective and retinal spatial reference by varying stimulus orientation and body posture was used in conjunction with the "same-different" reaction time paradigm. It was predicted that the individual differences in perceptual processing (analytic and structural) obtained by Hock (1973) would involve different determinants of spatial reference, these being retinal reference for analytic processing and objective reference for structural processing....
Show moreRock's procedure for separating the effect of objective and retinal spatial reference by varying stimulus orientation and body posture was used in conjunction with the "same-different" reaction time paradigm. It was predicted that the individual differences in perceptual processing (analytic and structural) obtained by Hock (1973) would involve different determinants of spatial reference, these being retinal reference for analytic processing and objective reference for structural processing. The results show that analytic subjects as hypothesized, referenced perceptual information to a retinal coordinate system. Structural subjects however, seemed to reference perceptual information to both objective and retinal coordinates. The results for structural subjects were attributed to the unexpected finding that subjects who were structural while upright, became analytic when in a reclining position. The latter finding suggested that Rock's methodology for separating the effects of retinal and objective orientation relies on the subjects employing the same mode of processing in all bodily postures.
Show less - Date Issued
- 1974
- PURL
- http://purl.flvc.org/fcla/dt/13649
- Subject Headings
- Form perception, Orientation (Psychology), Recognition (Psychology), Visual perception
- Format
- Document (PDF)
- Title
- COLLISION FREE NAVIGATION IN 3D UNSTRUCTURED ENVIRONMENTS USING VISUAL LOOMING.
- Creator
- Yepes, Juan David Arango, Raviv, Daniel, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Vision is a critical sense for many species, with the perception of motion being a fundamental aspect. This aspect often provides richer information than static images for understanding the environment. Motion recognition is a relatively simple computation compared to shape recognition. Many creatures can discriminate moving objects quite well while having virtually no capacity for recognizing stationary objects. Traditional methods for collision-free navigation require the reconstruction of...
Show moreVision is a critical sense for many species, with the perception of motion being a fundamental aspect. This aspect often provides richer information than static images for understanding the environment. Motion recognition is a relatively simple computation compared to shape recognition. Many creatures can discriminate moving objects quite well while having virtually no capacity for recognizing stationary objects. Traditional methods for collision-free navigation require the reconstruction of a 3D model of the environment before planning an action. These methods face numerous limitations as they are computationally expensive and struggle to scale in unstructured and dynamic environments with a multitude of moving objects. This thesis proposes a more scalable and efficient alternative approach without 3D reconstruction. We focus on visual motion cues, specifically ’visual looming’, the relative expansion of objects on an image sensor. This concept allows for the perception of collision threats and facilitates collision-free navigation in any environment, structured or unstructured, regardless of the vehicle’s movement or the number of moving objects present.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014239
- Subject Headings
- Motion perception (Vision), Collision avoidance systems, Visual perception
- Format
- Document (PDF)
- Title
- Effects of hippocampal impairment on rodent spatial and non-spatial memory.
- Creator
- Rios, Lisa, Lora, Joan C., Zhang, Gongliang, Stackman, Robert W., Graduate College
- Date Issued
- 2011-04-08
- PURL
- http://purl.flvc.org/fcla/dt/3164769
- Subject Headings
- Nerve Degeneration, Rodents, Space perception
- Format
- Document (PDF)
- Title
- HIDING IN FLOODPLAIN SIGHT: HOW DOES FLOOD RISK INFORMATION AFFECT FLOOD RISK PERCEPTIONS AND MITIGATION BEHAVIORS?.
- Creator
- Amato, Ryan, Polsky, Colin, Florida Atlantic University, Department of Geosciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Florida has 906,465 residential properties facing substantial flood risk, making it imperative to understand how the public may perceive and respond to this risk. Providing people with scientific information may not be enough to impact behavior and decrease losses from flood events. We show participants (n = 20) scientific flood risk graphics and ask behavioral questions to evaluate responses based on the rational actor paradigm (RAP), psychometric paradigm, and cultural theory. We find...
Show moreFlorida has 906,465 residential properties facing substantial flood risk, making it imperative to understand how the public may perceive and respond to this risk. Providing people with scientific information may not be enough to impact behavior and decrease losses from flood events. We show participants (n = 20) scientific flood risk graphics and ask behavioral questions to evaluate responses based on the rational actor paradigm (RAP), psychometric paradigm, and cultural theory. We find results consistent with the RAP in 48% of cases, primarily in low risk scenarios. Participants from high income households are more likely to make rational decisions (80%) than those from low income households (~37%). Feelings of dread potentially help explain 40% of deviations from the RAP, while trust in flood experts helps explain 85% of non-RAP cases. Future flood risk communication should incorporate dread and trust in experts into messaging considerations as rationality alone is insufficient.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013765
- Subject Headings
- Floods, Decision making, Risk perception
- Format
- Document (PDF)
- Title
- "How to milk a coat": The effect of acoustic parameter and semantic sentence context on phonemic categorization and lexical selection.
- Creator
- Borsky, Susan, Florida Atlantic University, Tuller, Betty
- Abstract/Description
-
This experiment investigated the role of sentence meaning in auditory language comprehension. Tokens from a GOAT-COAT speech voicing continuum were embedded in carrier sentences that were biased toward either a "goat" or "coat" interpretation and presented to subjects for a word identification task. The identification function showed a boundary shift in favor of the biased context, and an interaction localized to the ambiguous boundary region. Response times were largest in the boundary...
Show moreThis experiment investigated the role of sentence meaning in auditory language comprehension. Tokens from a GOAT-COAT speech voicing continuum were embedded in carrier sentences that were biased toward either a "goat" or "coat" interpretation and presented to subjects for a word identification task. The identification function showed a boundary shift in favor of the biased context, and an interaction localized to the ambiguous boundary region. Response times were largest in the boundary region and the interaction between the two factors was localized to the boundary region and the voiced endpoint. There was also a response time advantage for context consistent responses specifically in the boundary region. These results and those of earlier research (Connine, 1987; Connine & Clifton, 1987) are described in terms of interactive activation of potential response categories by acoustic parameter and sentence context.
Show less - Date Issued
- 1996
- PURL
- http://purl.flvc.org/fcla/dt/15313
- Subject Headings
- Speech perception, Comprehension, Semantics, Psycholinguistics
- Format
- Document (PDF)
- Title
- Autonomous landing and road following using two-dimensional visual cues.
- Creator
- Yakali, Huseyin Hakan., Florida Atlantic University, Raviv, Daniel, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
- Abstract/Description
-
This dissertation deals with vision-based perception-action closed-loop control systems based on 2-D visual cues. These visual cues are used to calculate the relevant control signals required for autonomous landing and road following. In the landing tasks it has been shown that nine 2-D visual cues can be extracted from a single image of the runway. Seven of these cues can be used to accomplish parallel flight and glideslope tracking tasks of the landing. For the road following task, three...
Show moreThis dissertation deals with vision-based perception-action closed-loop control systems based on 2-D visual cues. These visual cues are used to calculate the relevant control signals required for autonomous landing and road following. In the landing tasks it has been shown that nine 2-D visual cues can be extracted from a single image of the runway. Seven of these cues can be used to accomplish parallel flight and glideslope tracking tasks of the landing. For the road following task, three different algorithms based on two different 2-D visual cues are developed. One of the road following algorithms can be used to generate steering and velocity commands for the vehicle. Glideslope tracking of the landing task has been implemented in real-time on a six-degree-of-freedom flight simulator. It has been shown that the relevant information computed from 2-D visual cues is robust and reliable for the landing tasks. Road following algorithms were tested successfully up to 50km/h on a US Army High Mobility and Multipurpose Wheeled Vehicle (HMMWV) equipped with a vision system and on a Denning mobile robot. The algorithms have also been tested successfully using PC-based software simulation programs.
Show less - Date Issued
- 1994
- PURL
- http://purl.flvc.org/fcla/dt/12365
- Subject Headings
- Visual perception, Landing aids (Aeronautics)
- Format
- Document (PDF)
- Title
- TRIAL-BY-TRIAL VS. BLOCK METHODS OF CUING AUDITORY SIGNAL PROBABILITIES WITH NAIVE SUBJECTS.
- Creator
- MORRIS, CHARLES D., Florida Atlantic University
- Abstract/Description
-
Twenty-four naive human Ss were run in an auditory signal detection task examining two hypotheses. 1) Naive Ss can produce data consistent with the theoretical assumptions of normality and equal variance of the underlying distributions. ROC curves on double-probability paper were found to be generally supportive of these assumptions as indicated by their linearity and slope. 2) The "trial-by-trial" method more evenly distributes the effect of nonsensory variables, providing less variable...
Show moreTwenty-four naive human Ss were run in an auditory signal detection task examining two hypotheses. 1) Naive Ss can produce data consistent with the theoretical assumptions of normality and equal variance of the underlying distributions. ROC curves on double-probability paper were found to be generally supportive of these assumptions as indicated by their linearity and slope. 2) The "trial-by-trial" method more evenly distributes the effect of nonsensory variables, providing less variable estimates of d' and S than does the "block" method. No differences were found in mean d' values although the "trial-by-trial" method produced less variable estimates. The ''block" method produced somewhat better orderings of individual, but not mean, beta values across probability levels. It is concluded that further use of naive Ss in signal detection paradigms permissible and that the "trial-by-trial" method is preferable for obtaining stable estimates of d', but not for obtaining appropriate orderings of beta.
Show less - Date Issued
- 1973
- PURL
- http://purl.flvc.org/fcla/dt/13594
- Subject Headings
- Auditory perception, Signal detection (Psychology)
- Format
- Document (PDF)
- Title
- Mirror neurons: imitation and emotional differences among males and females.
- Creator
- Reale, AmberRose, Rosselli, Monica, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
The mirror neuron system consists of a specific class of visuomotor neurons, which fire for both observation and execution of an action (di Pellegrino et al., 1992), as well as showing differences for empathy and gender. Fifty males (M = 25.94) and fifty females (M = 25.48) watched short clips of a hand tapping fingers in a sequence in neutral and emotional settings. Participants were asked to imitate emotions while watching and repeating the finger sequences. A univariate ANOVA discovered...
Show moreThe mirror neuron system consists of a specific class of visuomotor neurons, which fire for both observation and execution of an action (di Pellegrino et al., 1992), as well as showing differences for empathy and gender. Fifty males (M = 25.94) and fifty females (M = 25.48) watched short clips of a hand tapping fingers in a sequence in neutral and emotional settings. Participants were asked to imitate emotions while watching and repeating the finger sequences. A univariate ANOVA discovered significant differences in response times for males and females in the emotion trials, which were eliminated when empathy was included in the analysis. Findings show those higher in empathy are faster at imitation of a motor task in emotional settings.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004153
- Subject Headings
- Affective neuroscience, Emotions -- Psychological aspects, Form perception -- Physiological aspects, Pattern perception -- Physiological aspects, Perception -- Physiological aspects, Sex differences
- Format
- Document (PDF)
- Title
- The effect of face-voice synchrony on infant allocation of visual attention.
- Creator
- Minar, Nicholas J., Hansen, Amy, Lewkowicz, David J., Graduate College
- Date Issued
- 2011-04-08
- PURL
- http://purl.flvc.org/fcla/dt/3165808
- Subject Headings
- Speech perception, Language acquisition, Prosodic analysis (Linguistics)
- Format
- Document (PDF)
- Title
- Crepuscular and nocturnal illumination and its effects on color perception in the nocturnal hawkmoth Deilephila elpenor.
- Creator
- Johnsen, Sonke, Kelber, A., Warrant, E., Sweeney, A. M., Widder, Edith A., Lee, Raymond L. Jr., Hernandez-Andres, J., Harbor Branch Oceanographic Institute
- Date Issued
- 2006
- PURL
- http://purl.flvc.org/fau/fd/FA00007078
- Subject Headings
- Crepuscule, Hawkmoths, Sphingidae, Color Perception, Color vision
- Format
- Document (PDF)
- Title
- Memory for criminal events.
- Creator
- Norcini, Hannah, Earles, Julie
- Date Issued
- 2013-04-05
- PURL
- http://purl.flvc.org/fcla/dt/3361157
- Subject Headings
- Memory--Age factors, Face perception
- Format
- Document (PDF)
- Title
- UNDERSTANDING THE OTHER-RACE EFFECT THROUGH EYE-TRACKING, EXPERIENCE, AND IMPLICIT BIAS.
- Creator
- Soethe, Elizabeth, Anzures, Gizelle, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
Face perception and recognition abilities develop throughout childhood and differences in viewing own-race and other-race faces have been found in both children (Hu et al., 2014) and adults (Blais et al., 2008). In addition, implicit biases have been found in children as young as six (Baron & Banaji, 2006) and have been found to influence face recognition (Bernstein, Young, & Hugenberg, 2007). The current study aimed to understand how gaze behaviors, implicit biases, and other-race experience...
Show moreFace perception and recognition abilities develop throughout childhood and differences in viewing own-race and other-race faces have been found in both children (Hu et al., 2014) and adults (Blais et al., 2008). In addition, implicit biases have been found in children as young as six (Baron & Banaji, 2006) and have been found to influence face recognition (Bernstein, Young, & Hugenberg, 2007). The current study aimed to understand how gaze behaviors, implicit biases, and other-race experience contribute to the other-race effect and their developmental effects. Caucasian children’s (5-10 years of age) and young adults’ scanning behaviors were recorded during an old/new recognition task using Asian and Caucasian faces. Participants also completed an Implicit Association Test (IAT) and a race experience questionnaire. Results found an own-race bias in both children and adults. Only adult’s IAT scores were significantly different from zero, indicating an implicit bias. Participants had a greater number of eye to eye fixations for Caucasian faces, in comparison to Asian faces and eye to eye fixations were greater in adults during encoding phases. Additionally, increased nose looking times were observed with age. Central attention to the nose may be indicative of a more holistic viewing strategy implemented by adults and older children. Participants spent longer looking at the mouth of Asian faces during encoding and test for older children and adults, but younger children spent longer looking at own-race mouths during recognition. Correlations between scanning patterns and implicit biases, and experience difference scores were also observed. Both social and perceptual factors seem to influence looking behaviors for own- and other-race faces and are undergoing changes during childhood.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013636
- Subject Headings
- Bias, Discrimination, Eye tracking, Face perception
- Format
- Document (PDF)
- Title
- It’s all just in your head: How does a person’s cultural identity affect their flood risk perceptions and mitigation behaviors?.
- Creator
- Oglesby, Glen E., Polsky, Colin, Florida Atlantic University, Department of Geosciences, Charles E. Schmidt College of Science
- Abstract/Description
-
As flood risk rises in the U.S., technology and insights rise too, but even with these advances we still see the consequences of flood risk. Together, the rational actor paradigm (“RAP”), psychometrics, and cultural theory help to explain risk perceptions and behaviors of 20 respondents. Results from the mixed-methods approach found the RAP insufficient, less accurate than a coin toss (48%), when explaining respondent behaviors. Rather, risk perceptions and behaviors of the RAP explain the...
Show moreAs flood risk rises in the U.S., technology and insights rise too, but even with these advances we still see the consequences of flood risk. Together, the rational actor paradigm (“RAP”), psychometrics, and cultural theory help to explain risk perceptions and behaviors of 20 respondents. Results from the mixed-methods approach found the RAP insufficient, less accurate than a coin toss (48%), when explaining respondent behaviors. Rather, risk perceptions and behaviors of the RAP explain the behaviors of lower risk portrayal groups (66%) and higher income groups (80%), with higher risk portrayals being relying on respondents’ trust in flood experts (45%) and cultural worldviews (55%). Cultural identities explain 65% of respondents’ behaviors across levels of risk portrayal (500-, 100-, and 25-year floodplain), and risk portrayal types (cumulative and AAL). In a world with increased risk, technology, and knowledge, researchers need understand the explanatory power of the RAP, psychometrics, and cultural theory.
Show less - Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FA00013760
- Subject Headings
- Risk perception, Floods, Cultural identity, Psychometrics
- Format
- Document (PDF)
- Title
- Investigating the Temporal Dynamics of Advanced Information Processing During Interocular Suppression Using Electroencephalography and Pattern Classification.
- Creator
- Cox, Dustin, Hong, Sang Wook, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Psychology
- Abstract/Description
-
A thorough delineation of the extent of processing possible without visual awareness is necessary to elucidate the neural mechanisms of visual awareness. Despite extensive research, it is presently unclear whether invisible stimuli can undergo advanced processing. To introduce existing work on this topic, previous behavioral efforts to investigate the extent of processing possible without visual awareness and the psychophysical methods used to render stimuli invisible, such as visual masking...
Show moreA thorough delineation of the extent of processing possible without visual awareness is necessary to elucidate the neural mechanisms of visual awareness. Despite extensive research, it is presently unclear whether invisible stimuli can undergo advanced processing. To introduce existing work on this topic, previous behavioral efforts to investigate the extent of processing possible without visual awareness and the psychophysical methods used to render stimuli invisible, such as visual masking and interocular suppression-based techniques, are discussed. Physiological evidence that provide support for and against the possibility that advanced information processing can occur without visual awareness are addressed. The basics of multivariate pattern classification techniques are outlined. The potential of using multivariate pattern classification analyses in conjunction with neuroimaging in the temporal domain to investigate whether advanced processing can occur without visual awareness is discussed. An original study using electroencephalography (EEG) and pattern classification techniques to investigate the extent of processing possible without visual awareness is outlined. The results of the analyses reveal that a pattern classifier did not extract neural signatures of categorical processing from EEG recordings when participants viewed an image that remained invisible for the duration of its presentation. In contrast, the results from a second experiment reveal that the pattern classifier was able to decode the category of invisible images from the EEG time series when the images would eventually become visible. The results provide support for the idea that under certain circumstances, such as when the depth of interocular suppression is reduced, advanced processing for invisible stimuli can occur.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FA00013193
- Subject Headings
- Advanced information processing, Electroencephalography, Neuroimaging, Visual perception
- Format
- Document (PDF)
- Title
- Cognitive mediation and response generation in victimized children.
- Creator
- Williard, Jean Carlisle, Florida Atlantic University
- Abstract/Description
-
It was hypothesized that victimized children are less able than other children to think of competent responses when in danger of being attacked by a peer. Two other factors hypothesized to influence the ability to generate competent responses were the subject's level of aggressiveness and the subject's sex. Subjects were 48 third through sixth graders. Children were read four scenarios describing provocative behavior toward them by a peer and asked to state all the things a child might do if...
Show moreIt was hypothesized that victimized children are less able than other children to think of competent responses when in danger of being attacked by a peer. Two other factors hypothesized to influence the ability to generate competent responses were the subject's level of aggressiveness and the subject's sex. Subjects were 48 third through sixth graders. Children were read four scenarios describing provocative behavior toward them by a peer and asked to state all the things a child might do if the situation really happened. Results indicated that victim girls generated more incompetent responses than control girls (when controlled for redundancy), but victim status did not influence boy's data. Deficits were also found for high aggressive children and boys in their greater production (uncorrected for redundancies) of incompetent responses that were aggressive. It was concluded that victimized girls, but not boys may have cognitive deficits in response generation processes.
Show less - Date Issued
- 1988
- PURL
- http://purl.flvc.org/fcla/dt/14483
- Subject Headings
- Social perception in children, Aggressiveness in children
- Format
- Document (PDF)
- Title
- Effects of a Time Correlated Cue on Tempral Discrimination and Reinforcement.
- Creator
- Casterton, June G., Adamson, Robert E., Florida Atlantic University
- Abstract/Description
-
Twenty-eight male hooded rats were trained with a time correlated cue called al1 clock. The Ss were divided into four matched groups for the four experimental procedures. The light out group had the time correlated cue removed. Two groups received 50% reinforcement; one on an alternating schedule, the other on a random basis. The regular group continued training with the clock. It was predicted that animals under the greatest control of the clock would exhibit the best temporal discrimination...
Show moreTwenty-eight male hooded rats were trained with a time correlated cue called al1 clock. The Ss were divided into four matched groups for the four experimental procedures. The light out group had the time correlated cue removed. Two groups received 50% reinforcement; one on an alternating schedule, the other on a random basis. The regular group continued training with the clock. It was predicted that animals under the greatest control of the clock would exhibit the best temporal discrimination. Dew’s notion that schedules and external stimulation provide more control than the immediate effects of reinforcement over behavior was tested. Helson’s adaptation level theory predicted that the two 50% groups would perform similarly. All four groups were significantly different from each other (p .001) based on the percent correct responses. Animals under the greatest control of the clock had the best temporal discriminations. Dew’s notion was supported. Helson's theory could not account for the differences between the two 50% reinforcement groups.
Show less - Date Issued
- 1968
- PURL
- http://purl.flvc.org/fau/fd/FA00000731
- Subject Headings
- Time perception in animals, Reinforcement (Psychology)
- Format
- Document (PDF)