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- Title
- Attentional and affective responses to complex musical rhythms.
- Creator
- Chapin, Heather L., Charles E. Schmidt College of Science, Center for Complex Systems and Brain Sciences
- Abstract/Description
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I investigated how two types of rhythmic complexity, syncopation and tempo fluctuation, affect the neural and behavioral responses of listeners. The aim of Experiment 1 was to explore the role of attention in pulse and meter perception using complex rhythms. A selective attention paradigm was used in which participants attended either to a complex auditory rhythm or a visually presented list of words. Performance on a reproduction task was used to gauge whether participants were attending to...
Show moreI investigated how two types of rhythmic complexity, syncopation and tempo fluctuation, affect the neural and behavioral responses of listeners. The aim of Experiment 1 was to explore the role of attention in pulse and meter perception using complex rhythms. A selective attention paradigm was used in which participants attended either to a complex auditory rhythm or a visually presented list of words. Performance on a reproduction task was used to gauge whether participants were attending to the appropriate stimulus. Selective attention to rhythms led to increased BOLD (Blood Oxygen Level-Dependent) responses in basal ganglia, and basal ganglia activity was observed only after the rhythms had cycled enough times for a stable pulse percept to develop. These observations show that attention is needed to recruit motor activations associated with the perception of pulse in complex rhythms. Moreover, attention to the auditory stimulus enhanced activity in an attentional sensory network including primary auditory, insula, anterior cingulate, and prefrontal cortex, and suppressed activity in sensory areas associated with attending to the visual stimulus. In Experiment 2, the effect of tempo fluctuation in expressive music on emotional responding in musically experienced and inexperienced listeners was investigated. Participants listened to a skilled music performance, including natural fluctuations in timing and sound intensity that musicians use to evoke emotional responses, and a mechanical performance of the same piece, that served as a control. Participants reported emotional responses on a 2-dimensional rating scale (arousal and valence), before and after fMRI scanning. During fMRI scanning, participants listened without reporting emotional responses. Tempo fluctuations predicted emotional arousal ratings for all listeners., Expressive performance was associated with BOLD increases in limbic areas for all listeners and in limbic and reward related areas forthose with musical experience. Activity in the dorsal anterior cingulate, which may reflect temporal expectancy, was also dependent on the musical experience of the listener. Changes in tempo correlated with activity in a mirror neuron network in all listeners, and mirror neuron activity was associated with emotional arousal in experienced listeners. These results suggest that emotional responding to music occurs through an empathic motor resonance.
Show less - Date Issued
- 2009
- PURL
- http://purl.flvc.org/FAU/368606
- Subject Headings
- Perceptual-motor learning, Musical perception, Computational neuroscience, Emotions in music, Music, Psychological aspects
- Format
- Document (PDF)
- Title
- 1/f structure of temporal fluctuation in rhythm performance and rhythmic coordination.
- Creator
- Rankin, Summer K., Charles E. Schmidt College of Science, Center for Complex Systems and Brain Sciences
- Abstract/Description
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This dissertation investigated the nature of pulse in the tempo fluctuation of music performance and how people entrain with these performed musical rhythms. In Experiment 1, one skilled pianist performed four compositions with natural tempo fluctuation. The changes in tempo showed long-range correlation and fractal (1/f) scaling for all four performances. To determine whether the finding of 1/f structure would generalize to other pianists, musical styles, and performance practices, fractal...
Show moreThis dissertation investigated the nature of pulse in the tempo fluctuation of music performance and how people entrain with these performed musical rhythms. In Experiment 1, one skilled pianist performed four compositions with natural tempo fluctuation. The changes in tempo showed long-range correlation and fractal (1/f) scaling for all four performances. To determine whether the finding of 1/f structure would generalize to other pianists, musical styles, and performance practices, fractal analyses were conducted on a large database of piano performances in Experiment 3. Analyses revealed signicant long-range serial correlations in 96% of the performances. Analysis showed that the degree of fractal structure depended on piece, suggesting that there is something in the composition's musical structure which causes pianists' tempo fluctuations to have a similar degree of fractal structure. Thus, musical tempo fluctuations exhibit long-range correlations and fractal scaling. To examine how people entrain to these temporal fluctuations, a series of behavioral experiments were conducted where subjects were asked to tap the pulse (beat) to temporally fluctuating stimuli. The stimuli for Experiment 2 were musical performances from Experiment 1, with mechanical versions serving as controls. Subjects entrained to all stimuli at two metrical levels, and predicted the tempo fluctuations observed in Experiment 1. Fractal analyses showed that the fractal structure of the stimuli was reected in the inter-tap intervals, suggesting a possible relationship between fractal tempo scaling, pulse perception, and entrainment. Experiments 4-7 investigated the extent to which people use long-range correlation and fractal scaling to predict tempo fluctuations in fluctuating rhythmic sequences., Both natural and synthetic long-range correlations enabled prediction, as well as shuffled versions which contained no long-term fluctuations. Fractal structure of the stimuli was again in the inter-tap intervals, with persistence for the fractal stimuli, and antipersistence for the shuffled stimuli. 1/f temporal structure is suficient though not necessary for prediction of fluctuations in a stimulus with large temporal fluctuations.
Show less - Date Issued
- 2010
- PURL
- http://purl.flvc.org/FAU/2705083
- Subject Headings
- Music, Psychological aspects, Emotions in music, Perceptual-motor learning, Computational neuroscience, Synchronization, Musical perception
- Format
- Document (PDF)
- Title
- MAPLE: A knowledge-based system for computer-aided music composition.
- Creator
- Shaouy, William Philip., Florida Atlantic University, Hewett, Rattikorn, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
- Abstract/Description
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Computer-aided music composition is a highly structured process. This thesis presents MAPLE, a prototype knowledge-based system that assists music composition by analyzing primordial lines in Western music. Unlike other music analysis systems, MAPLE uses an internal connective musical structure that provides a foundation for analysis. Thus our approach has a building block capability allowing easy extensions for analyzing more complex musical structures. We present a type hierarchy and...
Show moreComputer-aided music composition is a highly structured process. This thesis presents MAPLE, a prototype knowledge-based system that assists music composition by analyzing primordial lines in Western music. Unlike other music analysis systems, MAPLE uses an internal connective musical structure that provides a foundation for analysis. Thus our approach has a building block capability allowing easy extensions for analyzing more complex musical structures. We present a type hierarchy and hierarchical dependency of different musical concepts for controlling complex musical analysis processes. We provide comparisons of various knowledge representation structures and their corresponding inference mechanisms used for music analysis and conclude with a projection of an appropriate form of knowledge representation for musical knowledge.
Show less - Date Issued
- 1993
- PURL
- http://purl.flvc.org/fcla/dt/14986
- Subject Headings
- Music--Computer programs, Composition (Music)--Mechanical aids, Artificial intelligence--Musical applications, Musical analysis--Data processing
- Format
- Document (PDF)
- Title
- Multi-pulse excited linear prediction for synthesizing the guitar.
- Creator
- Leeds, David Scott., Florida Atlantic University, Erdol, Nurgun, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
- Abstract/Description
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In this paper we propose using parametric modeling by employing a Multi-Pulse Excited Linear Predictive Coded (MPE-LPC) filter to synthesize the guitar. First we introduce different methods for sound synthesis. A detailed discussion including the derivation of LPC and MPE presented. Then we study the impulse and steady state response of the guitar signal. An implementation of the MPE-LPC method to model the guitar is covered in detail and opportunities to improve the compression ratio are...
Show moreIn this paper we propose using parametric modeling by employing a Multi-Pulse Excited Linear Predictive Coded (MPE-LPC) filter to synthesize the guitar. First we introduce different methods for sound synthesis. A detailed discussion including the derivation of LPC and MPE presented. Then we study the impulse and steady state response of the guitar signal. An implementation of the MPE-LPC method to model the guitar is covered in detail and opportunities to improve the compression ratio are discussed. We then present simulation results with a set of fixed parameters, which are used as a benchmark to observe performance trade-offs by varying the model parameters to improve the compression ratio. Finally, we discuss limitations of the modeling algorithm for use with wide-band transient musical sounds and possible applications of the MPE-LPC model as a method to dynamically calculate samples for use with wavetable synthesis of steady state sounds.
Show less - Date Issued
- 2001
- PURL
- http://purl.flvc.org/fcla/dt/12759
- Subject Headings
- Computer music, Electric guitar, Signal processing--Digital techniques
- Format
- Document (PDF)
- Title
- The creative process is profoundly altered by changes in technology.
- Creator
- Hieronymus, Bruce, Florida Atlantic University, Keaton, Kenneth
- Abstract/Description
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Individuals throughout time have had a desire to reach beyond their surrounding intellectual and physical environment and explore new territories. Throughout their lives they have continually acquired knowledge. Technology is the application of this knowledge to solve problems. As the knowledge base of humankind has grown at an exponential rate, the presence of technology has also grown. Today technology has surpassed controls and is moving at a rampant rate of speed permitting the...
Show moreIndividuals throughout time have had a desire to reach beyond their surrounding intellectual and physical environment and explore new territories. Throughout their lives they have continually acquired knowledge. Technology is the application of this knowledge to solve problems. As the knowledge base of humankind has grown at an exponential rate, the presence of technology has also grown. Today technology has surpassed controls and is moving at a rampant rate of speed permitting the introduction of new levels of knowledge in all different layers of society. This, however, permits the creation and expression of new thoughts without the acquisition of previously required knowledge. Creativity is progressing rapidly without controls and the objects being created are somewhat questionable.
Show less - Date Issued
- 1999
- PURL
- http://purl.flvc.org/fcla/dt/15690
- Subject Headings
- Technological innovations, Computer music, Technology--Social aspects, Creative ability
- Format
- Document (PDF)
- Title
- Imagining Kandinsky’s theories as a synesthetic iPhone app.
- Creator
- Torlen, Anna, Bargsten, Joey, Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, School of Communication and Multimedia Studies
- Abstract/Description
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Wassily Kandinsky wrote Über das Geistige in der Kunst, in 1912, and was translated from German into English by Michael Sadler. Naming it at first, “The Art of Spiritual Harmony” in 1914 it is known as, Concerning the Spiritual in Art. He wrote color and music theories based on angles, synesthetic experiences, subjective instincts, chromotherapy, and shapes. Kandinsky’s theories are worth continuing to research and bring forth into the new generation of technology where we can see music as...
Show moreWassily Kandinsky wrote Über das Geistige in der Kunst, in 1912, and was translated from German into English by Michael Sadler. Naming it at first, “The Art of Spiritual Harmony” in 1914 it is known as, Concerning the Spiritual in Art. He wrote color and music theories based on angles, synesthetic experiences, subjective instincts, chromotherapy, and shapes. Kandinsky’s theories are worth continuing to research and bring forth into the new generation of technology where we can see music as numerical expressions. The goal of this iPhone Application is to teach users the relationship between color and music based on Kandinsky’s theories.
Show less - Date Issued
- 2015
- PURL
- http://purl.flvc.org/fau/fd/FA00004414, http://purl.flvc.org/fau/fd/FA00004414
- Subject Headings
- Art and music, Art, Modern -- 20th century -- Psychological aspects, Blaue Reiter (Group of artists), Computer art -- Technique, Expressionism (Art) -- 20th century, Kandinsky, Wassily -- 1866-1944 -- Concerning the spiritual in art -- Criticism and interpretation, Kandinsky, Wassily -- 1866-1944 -- Influence, Spirituality in art, iPhone (Smartphone) -- Mobile apps
- Format
- Document (PDF)