Rhythmic auditory grouping in pigeons

2009 ◽  
Author(s):  
Carl Hagmann ◽  
Robert Cook
Keyword(s):  
Auditory Grouping

Perceptual Processes in Orchestration

2018 ◽  
Author(s):  
Meghan Goodchild ◽  
Stephen McAdams
Keyword(s):  
Auditory Scene Analysis ◽  
Scene Analysis ◽  
Auditory Grouping ◽  
Musical Scores ◽  
Auditory Scene ◽  
Music Research

The study of timbre and orchestration in music research is underdeveloped, with few theories to explain instrumental combinations and orchestral shaping. This chapter will outline connections between the orchestration practices of the nineteenth and early twentieth centuries and perceptual principles based on recent research in auditory scene analysis and timbre perception. Analyses of orchestration treatises and musical scores reveal an implicit understanding of auditory grouping principles by which many orchestral effects and techniques function. We will explore how concurrent grouping cues result in blended combinations of instruments, how sequential grouping into segregated melodies or stratified (foreground and background) layers is influenced by timbral similarities and dissimilarities, and how segmental grouping cues create formal boundaries and expressive gestural shaping through changes in instrumental textures. This exploration will be framed within an examination of historical and contemporary discussion of orchestral effects and techniques.

Sequential and Simultaneous Auditory Grouping Measured with Synchrony Detection

2010 ◽  
pp. 489-496 ◽  
Author(s):  
Christophe Micheyl ◽  
Shihab Shamma ◽  
Mounya Elhilali ◽  
Andrew J. Oxenham
Keyword(s):  
Auditory Grouping

Auditory Grouping

Hearing ◽  
1995 ◽  
pp. 387-424 ◽  
Author(s):  
C.J. Darwin ◽  
R.P. Carlyon
Keyword(s):  
Auditory Grouping

Auditory Rhythms Influence Judged Time to Contact of an Occluded Moving Object

2017 ◽  
Vol 30 (7-8) ◽  
pp. 717-738 ◽  
Author(s):  
Chayada Chotsrisuparat ◽  
Arno Koning ◽  
Richard Jacobs ◽  
Rob van Lier
Keyword(s):  
Pause Duration ◽  
Moving Object ◽  
Time To Contact ◽  
Auditory Grouping ◽  
The Moment ◽  
Sound Duration

We studied the expected moment of reappearance of a moving object after it disappeared from sight. In particular, we investigated whether auditory rhythms influence time to contact (TTC) judgments. Using displays in which a moving disk disappears behind an occluder, we examined whether an accompanying auditory rhythm influences the expected TTC of an occluded moving object. We manipulated a baseline auditory rhythm — consisting of equal sound and pause durations — in two ways: either the pause durations or the sound durations were increased to create slower rhythms. Participants had to press a button at the moment they expected the disk to reappear. Variations in pause duration (Experiments 1 and 2) affected expected TTC, in contrast to variations in sound duration (Experiment 3). These results show that auditory rhythms affect expected reappearance of an occluded moving object. Second, these results suggest that temporal auditory grouping is an important factor in TTC.

scholarly journals A function for binaural integration in auditory grouping and segregation in the inferior colliculus

2015 ◽  
Vol 113 (6) ◽  
pp. 1819-1830 ◽  
Author(s):  
Kyle T. Nakamoto ◽  
Trevor M. Shackleton ◽  
David A. Magezi ◽  
Alan R. Palmer
Keyword(s):  
Inferior Colliculus ◽  
Central Nucleus ◽  
Harmonic Complex ◽  
Auditory Grouping ◽  
Sound Segregation ◽  
Fundamental Frequencies ◽  
Complex Stimuli ◽  
Left And Right ◽  
Contralateral Ear ◽  
Contralateral Stimulus

Responses of neurons to binaural, harmonic complex stimuli in urethane-anesthetized guinea pig inferior colliculus (IC) are reported. To assess the binaural integration of harmonicity cues for sound segregation and grouping, responses were measured to harmonic complexes with different fundamental frequencies presented to each ear. Simultaneously gated harmonic stimuli with fundamental frequencies of 125 Hz and 145 Hz were presented to the left and right ears, respectively, and recordings made from 96 neurons with characteristic frequencies >2 kHz in the central nucleus of the IC. Of these units, 70 responded continuously throughout the stimulus and were excited by the stimulus at the contralateral ear. The stimulus at the ipsilateral ear excited (EE: 14%; 10/70), inhibited (EI: 33%; 23/70), or had no significant effect (EO: 53%; 37/70), defined by the effect on firing rate. The neurons phase locked to the temporal envelope at each ear to varying degrees depending on signal level. Many of the cells (predominantly EO) were dominated by the response to the contralateral stimulus. Another group (predominantly EI) synchronized to the contralateral stimulus and were suppressed by the ipsilateral stimulus in a phasic manner. A third group synchronized to the stimuli at both ears (predominantly EE). Finally, a group only responded when the waveform peaks from each ear coincided. We conclude that these groups of neurons represent different “streams” of information but exhibit modifications of the response rather than encoding a feature of the stimulus, like pitch.

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