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Early Neural Correlates of an Auditory Pitch - Visual Size Cross-modal Association
- Source :
- PUB-Publications at Bielefeld University
- Publication Year :
- 2018
- Publisher :
- Cold Spring Harbor Laboratory, 2018.
-
Abstract
- Research has shown participants associate high pitch tones with small objects, and low pitch tones with large objects. Yet it remains unclear when these associations emerge in neural signals, and whether or not they are likely the result of predictive coding mechanisms being influenced by multisensory priors. Here we investigated these questions using a modified version of the implicit association task, 128-channel human EEG, and two approaches to single-trial analysis (linear discriminant and mutual information). During two interlaced discrimination tasks (auditory high/low tone and visual small/large circle), one stimulus was presented per trial and the auditory stimulus-response assignment was manipulated. On congruent trials preferred pairings (high tone, small circle) were assigned to the same response key, and on incongruent trials non-preferred pairings were (low tone, small circle). The results showed participants (male and female) responded faster during auditory congruent than incongruent trials. The EEG results showed that acoustic pitch and visual size were represented early in the trial (~100 ms and ~220 ms), over temporal and frontal regions. Neural signals were also modulated by congruency early in the trial for auditory (
- Subjects :
- medicine.medical_specialty
Neural correlates of consciousness
medicine.diagnostic_test
05 social sciences
Mutual information
Stimulus (physiology)
Audiology
Electroencephalography
Linear discriminant analysis
050105 experimental psychology
Auditory pitch
03 medical and health sciences
0302 clinical medicine
Modal
medicine
0501 psychology and cognitive sciences
10. No inequality
Psychology
030217 neurology & neurosurgery
Circle of a sphere
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- PUB-Publications at Bielefeld University
- Accession number :
- edsair.doi.dedup.....bf553803407d9552b89707d14f6a3e37