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Method and apparatus for nonlinear frequency analysis of structured signals
Title
Method and apparatus for nonlinear frequency analysis of structured signals.
Creator
Large, Edward W., Florida Atlantic University
Date Issued
2005-12
PURL
http://purl.flvc.org/fcla/dt/15808
Format
Document (PDF)
Neurodynamic predictions of musical tonality
Title
Neurodynamic predictions of musical tonality.
Creator
Flaig, Nicole, Kim, Ji Chul, Krumhansl, Carol, Large, Edward W., Graduate College
Date Issued
2013-04-12
PURL
http://purl.flvc.org/fcla/dt/3361928
Subject Headings
Music, Tonality, Complex systems and interdisciplinary science
Format
Document (PDF)
Dynamic Emotional and Neural Responses to Music Depend on Performance Expression and Listener Experience
Title
Dynamic Emotional and Neural Responses to Music Depend on Performance Expression and Listener Experience.
Creator
Chapin, Heather L., Jantzen, Kelly J., Kelso, J. A. Scott, Steinberg, Fred, Large, Edward W., Rodriguez-Fornells, Antoni
Abstract/Description
Apart from its natural relevance to cognition, music provides a window into the intimate relationships between production, perception, experience, and emotion. Here, emotional responses and neural activity were observed as they evolved together with stimulus parameters over several minutes. Participants listened to a skilled music performance that included the natural fluctuations in timing and sound intensity that musicians use to evoke emotional responses. A mechanical performance of the...
Show moreApart from its natural relevance to cognition, music provides a window into the intimate relationships between production, perception, experience, and emotion. Here, emotional responses and neural activity were observed as they evolved together with stimulus parameters over several minutes. Participants listened to a skilled music performance that included the natural fluctuations in timing and sound intensity that musicians use to evoke emotional responses. A mechanical performance of the same piece served as a control. Before and after fMRI scanning, participants reported real-time emotional responses on a 2-dimensional rating scale (arousal and valence) as they listened to each performance. During fMRI scanning, participants listened without reporting emotional responses. Limbic and paralimbic brain areas responded to the expressive dynamics of human music performance, and both emotion and reward related activations during music listening were dependent upon musical training. Moreover, dynamic changes in timing predicted ratings of emotional arousal, as well as real-time changes in neural activity. BOLD signal changes correlated with expressive timing fluctuations in cortical and subcortical motor areas consistent with pulse perception, and in a network consistent with the human mirror neuron system. These findings show that expressive music performance evokes emotion and reward related neural activations, and that music’s affective impact on the brains of listeners is altered by musical training. Our observations are consistent with the idea that music performance evokes an emotional response through a form of empathy that is based, at least in part, on the perception of movement and on violations of pulse-based temporal expectancies.
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Date Issued
2010-12-16
PURL
http://purl.flvc.org/fau/fd/FAUIR000067
Format
Citation
Neural Responses to Complex Auditory Rhythms: The Role of Attending
Title
Neural Responses to Complex Auditory Rhythms: The Role of Attending.
Creator
Chapin, Heather L., Zanto, Theodore, Jantzen, Kelly J., Kelso, J. A. Scott, Steinberg, Fred, Large, Edward W.
Date Issued
2010
PURL
http://purl.flvc.org/fau/fd/FAUIR000165
Format
Citation
Neural Correlates of Auditory Perception, Attention and Expectation
Title
Neural Correlates of Auditory Perception, Attention and Expectation.
Creator
Zanto, Theodore P., Florida Atlantic University, Large, Edward W., Charles E. Schmidt College of Science, Center for Complex Systems and Brain Sciences
Abstract/Description
This dissertation examined the neural correlates of auditory perception, attention and expectation in three experiments. Experiment 1 analyzed neural correlates of auditory perception and expectation in an electroencephalography (EEG) experiment using a temporally perturbed metronome to establish an expectation for auditory events, then violate and reestablish that expectation. High frequency evoked (phase-locked) gamma band activity (GBA) was observed to follow the onset of tones whereas...
Show moreThis dissertation examined the neural correlates of auditory perception, attention and expectation in three experiments. Experiment 1 analyzed neural correlates of auditory perception and expectation in an electroencephalography (EEG) experiment using a temporally perturbed metronome to establish an expectation for auditory events, then violate and reestablish that expectation. High frequency evoked (phase-locked) gamma band activity (GBA) was observed to follow the onset of tones whereas induced (nonphase- locked) GBA reached maximum power simultaneously with the occurrence oftone onset. Moreover, the latency of induced GBA was perturbed after an expectancy violation and relaxed back into synchrony as the expectation was reestablished. Experiment 2 was a methodological study to compare two functional magnetic resonance imaging (fMRJ) scanning techniques and assess their influence on auditory processing. Subjects passively listened to isochronous tone sequences at three rates while sparse or continuous scanning was employed. Sparse and continuous scanning was observed to yield comparable fMRI data, however, continuous scanner notse was observed to perturb known EEG evoked response potentials. Moreover, high frequency evoked activity, as identified by spectral analysis, was attenuated in the presence of continuous fMRl noise. Experiment 3 was conducted to study auditory expectancy and attention. First, subjects were tested behaviorally to determine their ability to tap the beat of ten highly syncopated patterns. Subjects were asked to return for one EEG and one fMRl session. In these sessions, they were instructed to attend to a syncopated pattern, mentally rehearse the pattern, and then reproduce the pattern. During the control condition, subjects heard the auditory patterns, however, they were instructed to study a list of words, remember the words during the retention interval, and then recall as many words as possible. Brain activity was localized to frontal and auditory regions when attending to the patterns and occipital-auditory areas when attending to the words. Evoked activity was shown to reflect the subject's anticipation of the beat and was attenuated when ignoring the auditory stimulus. Taken together, these results suggest that GBA indexes auditory perception, attention and expectation. The current results suggest that attention and task engagement may elicit stronger neural phase locking.
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Date Issued
2006
PURL
http://purl.flvc.org/fau/fd/FA00000885
Subject Headings
Electrophysiology, Auditory evoked response, Electroencephalography, Auditory perception, Intersensory effects, Auditory pathways
Format
Document (PDF)