AI Article Synopsis
- Researchers discovered that music perception deficits, known as amusia, are more common in stroke patients than previously thought.
- Through a newly created test battery, six out of twelve stroke patients exhibited amusia while the others did not.
- The study also noted that patients with amusia showed significantly reduced brain responses (MMN) during music listening tasks, indicating potential difficulties in automatic stimulus classification.
Article Abstract
Music perception deficits following acute neurological damage are thought to be rare. By a newly devised test battery of music-perception skills, however, we were able to identify among a group of 12 patients with acute hemispheric stroke six patients with music perception deficits (amusia) while six others had no such deficits. In addition we recorded event-related brain potentials (ERPs) in a passive listening task with frequent standard and infrequent pitch deviants designed to elicit the mismatch negativity (MMN). The MMN in the patients with amusia was grossly reduced, while the non-amusic patients and control subjects had MMNs of equal size. These data show that amusia is quite common in unselected stroke patients. The MMN reduction suggests that amusia is related to unspecific automatic stimulus classification deficits in these patients.
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| http://dx.doi.org/10.1016/s0028-3932(01)00079-3 | DOI Listing |
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