Feature Detection by the Auditory Cortex

  • Israel Nelken
Part of the Springer Handbook of Auditory Research book series (SHAR, volume 15)

Abstract

The view of neurons in sensory cortices as performing feature detection on the peripheral input gained acceptance to a large extent from studies of cortical processing of visual information. In this view of the visual system, information from simple feature detectors in the retina (photoreceptors and retinal ganglion cells) converges at the level of the primary cortex to give rise to more complex, orientation-tuned neurons. These, in turn, send their outputs to higher cortical areas where more complex features are detected. For example, in some parts of the Infero-Temporal cortex (IT) there are neurons that can be considered to be medium-level feature detectors: they are sensitive to features that are more complex than oriented bars but less complex than full visual objects (Fujita et al. 1992; Ito et al. 1995). These neurons presumably converge further up to produce object-sensitive neurons such as the face-sensitive cells (Perrett et al. 1982).

Keywords

Auditory Cortex Pure Tone Tuning Curve Primary Auditory Cortex Directional Selectivity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Israel Nelken

There are no affiliations available

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