New paper in press: Her­rmann et al., Hear­ing Research [Update]

Audi­to­ry fil­ter width affects respon­se mag­ni­tude but not fre­quen­cy speci­fici­ty in audi­to­ry cor­tex

This is fan­tas­tic news on a fri­day morn­ing: Oble­ser lab Post­doc Björn Her­rmann teamed up with his fel­low Post­docs Math­i­as Scharinger and Mol­ly Hen­ry to study how spec­tral analy­sis in the audi­to­ry periph­ery (ter­med fre­quen­cy selec­tiv­i­ty) relates to pro­cess­ing in audi­to­ry cor­tex (ter­med fre­quen­cy speci­fici­ty; see also Björns paper in J Neu­ro­phys­i­ol 2013).

Giv­ing this an age­ing and hear­ing loss per­spec­tive and build­ing on the con­cept of audi­to­ry fil­ters in the cochlea (Moore et al.), Björn found that  the over­all N1 ampli­tude of lis­ten­ers, but not their frequency-specific neu­ral adap­ta­tion pat­terns, is cor­re­lat­ed with the pass-band of the audi­to­ry fil­ter.

This sug­gests that widened audi­to­ry fil­ters are com­pen­sat­ed for by a respon­se gain in frequency-specific areas of audi­to­ry cor­tex; the paper is in press and forth­com­ing in Hear­ing Research.

 

Update:

Paper is avail­able online.

Ref­er­ences

  • Her­rmann B, Hen­ry MJ, Scharinger M, Oble­ser J. Audi­to­ry fil­ter width affects respon­se mag­ni­tude but not fre­quen­cy speci­fici­ty in audi­to­ry cor­tex. Hear Res. 2013 Oct;304:128–36. PMID: 23876524. [Open with Read]

12. July 2013 by Jonas
Categories: Auditory Cortex, Auditory Neuroscience, Auditory Perception, Clinical relevance, EEG / MEG, Evoked Activity, Hearing Loss, Papers, Psychology, Publications | Tags: , , , , , , | Comments Off on New paper in press: Her­rmann et al., Hear­ing Research [Update]