[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Function of Cochlear Nucleus cell types

We have just published a neurobiologically inspired signal processing algorithm that employs chopper and octopus cell properties to enhance the salience of tonal signals such as vocal communication. In this paper we suggest chopper cell synchronization likely evolved to enhance sensitivity to vocalizations rather than fine pitch perception, which has little evolutionary benefit for early animals (see McLachlan NM and Grayden DB (2014). Enhancement of speech perception in noise by periodicity processing: A neurobiological model and signal processing algorithm, Speech Communication 57C, pp. 114-125. DOI information: 10.1016/j.specom.2013.09.007).


Other important functional networks that stem from the CN involve learnt motor reflexes via the pons (see Medina et al, with likely learning feedback via the olivary complex) and habituation of hearing sensitivity by DCN cells. I have a review on these networks currently under review, so hopefully I can share more information in the near future.


Best regards


Neil McLachlan


From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of AUDITORY automatic digest system
Sent: Wednesday, 8 January 2014 4:01 PM
To: AUDITORY@xxxxxxxxxxxxxxx
Subject: AUDITORY Digest - 6 Jan 2014 to 7 Jan 2014 (#2014-7)