Speech perception in amusia. (360G-Wellcome-109719_Z_15_Z)
Amusia is a disorder characterized by impaired pitch discrimination, which interferes with both music and speech perception in the laboratory. However, paradoxically, amusics do not report problems with speech perception in everyday life. We hypothesize that amusics compensate for their deficit by focusing on durational information in speech, which provides cues to some of the same structural elements marked by pitch changes. Here we propose to develop a behavioural and functional magnetic reson ance imaging battery designed to test this compensatory hypothesis. Lexical stress perception, prosody perception, and speech-in-noise perception tested will be tested in three different conditions: with unaltered stimuli, with only pitch cues, and with only durational cues. We predict that amusics will be impaired only on the conditions containing only pitch cues. We further predict that in amusics the pattern of activation elicited when both pitch and duration cues are present will closely res emble the pattern when only durational cues are present, while in control subjects pitch- and duration-tracking networks will be equally represented. The development of this testing paradigm would enable evaluation of pitch and duration processing during speech perception in a variety of populations.
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Grant Details
Amount Awarded | 98068 |
Applicant Surname | Tierney |
Approval Committee | ERG3 Cognitive Neuroscience and Mental Health |
Award Date | 2015-09-17T00:00:00+00:00 |
Financial Year | 2014/15 |
Grant Programme: Title | Seed Award in Science |
Internal ID | 109719/Z/15/Z |
Lead Applicant | Dr Adam Tierney |
Partnership Value | 98068 |
Planned Dates: End Date | 2018-01-29T00:00:00+00:00 |
Planned Dates: Start Date | 2016-08-01T00:00:00+00:00 |
Recipient Org: Country | United Kingdom |
Region | Greater London |