Bases for auditory cognition. (360G-Wellcome-106964_Z_15_Z)

£1,718,617

Auditory cognition is the mechanism for making sense of the acoustic world. This is a necessary basis for the understanding of speech, environmental sounds and music that interacts with common hearing loss and is affected by common brain disorders. The work extends my approach to auditory cognition using synthetic stimuli that are statistically similar to natural stimuli. The work addresses two critical and broad systems for auditory cognition: auditory figure-ground analysis and working memory. The two human systems would be defined by modelling neurophysiological data acquired non-invasively (magnetoencephalography) and invasively (neurophysiology on neurosurgical subjects). Pilot work suggests systems for auditory figure-ground analysis involving auditory and parietal cortex and for working memory involving auditory cortex, frontal cortex and hippocampus. In particular, the work tests whether these systems obey the principle of predictive coding with prominent backward connectivity from high-level areas to auditory cortex. My previous work on perception supports this idea, but application of predictive coding to auditory cognition in general is controversial. Human clinical work would establish how these two systems contribute to speech-in-noise detection deficits in cochlear hearing loss and how common brain disorders affect the two systems.

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Grant Details

Amount Awarded 1718617
Applicant Surname Griffiths
Approval Committee Science Interview Panel
Award Date 2015-04-01T00:00:00+00:00
Financial Year 2014/15
Grant Programme: Title Senior Research Fellowship Clinical Renewal
Internal ID 106964/Z/15/Z
Lead Applicant Prof Timothy Griffiths
Partnership Value 1718617
Planned Dates: End Date 2022-05-30T00:00:00+00:00
Planned Dates: Start Date 2015-12-01T00:00:00+00:00
Recipient Org: Country United Kingdom
Region North East
Sponsor(s) Prof Sir Doug Turnbull