Appendix 3.03 Survey of The Neurosciences
and Music III Conference 2008
Disorders and Plasticity
Part I. Rhythms in the Brain: Basic Science and Clinical Perspectives
(1-9)Title, CategoryAimMus. Material, Cultural Ref.Technology & ProcedureMain focus of interestConclusion- Chen et al.
(15-34)Auditory-motor interactionsCat. 4: Rhythm Cat. 17: Sensory-motor- Grahn
(35-45)The role of the basal ganglia in beat perception
Cat. 4: Rhythm Cat. 11: DeficitCat. 17: Sensory-motor- Large and Snyder
(46
-57)
Pulse and meter as neural resonance
Cat. 4: Rhythm 4. Iversen et al.(58-73)Brain mechanisms of metrical interpretation
Cat. 4:MeterTo elucidate the neural basis for interactions between the auditory and motor systems in the context of musical rhythm perception and production
To examine the neural basis of beat perceptionTo investigate proposal: Neural resonance provides an excellent account of many aspects of rhythm perceptionTo investigate how top-downcontrol of rhythm perception modulates early auditory responses1) Isochronous rhythm,
progressively altered metric saliency 2-3) Three rhythmsdiffering in complexity: simple,complex, ambiguous (nonmetric)(SNI)CR: Neutral 1) Novel rhythmicsequences,3 sec: metric simple, metric complex, nonmetric.
2) Beat and nonbeat versions of sequences, 11-18 sec:Volume accented, durationaccented, unaccented(SNI)CR: Neutral No particular musical material, multiplereferencesCR:---
A repeating sequence of two tones followed by a rest. 45 msec durationpure tones:1 kHz pips, inter-onsetintervals 200 msec
CR: NeutralfMRI: Tasks: 1) tapping to rhythm. 2) a) listening b)
tapping to rhythm.3) a) listening b)listening withanticipation to tap c) tapping to rhythm
1a)Behavioral study:Tappingback after hearing 3 times. b) fMRIstudy of adiscriminationparadigm.c) comparison: Parkinson’sDiseasepatients and controls2) fMRI while healthy participantscomplete anunrelated task
Review of literature, especially EEG and MEG studies. Proposal of a theoretical framework
1) ”imagined beat” condition.Instruction: mentally place the beat a) on 1st tone b) on 2nd tone 2) ”physical accent” condition. One tone isaccented, a) 1st tone
b) 2nd toneTo investigate different couplings betweentheauditory and motor systems
Functional connectivity betweenpart of the basalganglia (putamen) and cortical areas: premotor and supplementary motor areas
Neural correlates of rhythm perception in high-frequencyoscillatory activity
MEG: 1) To test whether voluntary metrical interpretation modulates brain responses
2) To test the contribution af exogenous factors in shaping brain responsesDorsal premotor cortex
(PMC)is sensitive torhythm’s metric structure. Ventral PMC is not, but it is sensitive to processingaction-related sounds. Themid-PMC is engaged during
both passive listening and tapping.
The basal ganglia is strongly implicated in processinga regular beat,especially when internal generation of the beat is required
Hypothesis: Perception of pulse and meter result from rhythmic bursts of highfrequency neuralactivity inresponse tomusical rhythms1) Metrical interpretation influenced early evokedneural responses to tones, specifically in the upper beta range (20-30 Hz)2) This beta increase resembles that due to physical accents