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The Auditory Cortex

Patterns of Corticocortical Projections Related to Physiological Maps in the Cat

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Book cover Cortical Sensory Organization

Part of the book series: Cortical Sensory Organization ((CSO,volume 3))

Abstract

Auditory cortex receives input from two major fiber systems. One system consists of the thalamocortical fibers that are the final link in the synaptic chain connecting the ear to the cerebral cortex. It is this system that presumably imposes tonotopic and binaural maps upon the auditory cortex. A second input system is composed of fibers that arise and terminate within the cortex itself. These corticocortical connections serve to interconnect different areas of the cerebral hemispheres. This report focuses on the relationships of tonopic and binaural maps to topograpic distributions of corticocortical connections within cat auditory cortex.

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Abbreviations

A:

Anterior auditory field

AES or aes:

Anterior ectosylvian sulcus

A I:

Primary of first auditory field

A II:

Second auditory area

BR:

Response over a broad frequency range at lowest-threshold intensity

C:

Contralateral dominance

C− or −:

Contralateral dominance and suppression

C +:

Contralateral dominance and summation

CBAES:

Caudal bank of the anterior estosylvian sulcus

CBPES:

Caudal bank of the posterior ectosylvian sulcus

CLZ:

Central labeled zone—the heavily labeled region surrounding an isotope injection site

DP:

Dorsoposterior area

HF:

High (>25kHz) best frequency

I:

Ipsilateral dominance

I−:

Ipsilateral dominance and supression

I+:

Ipsilateral dominance and summation

Kcps:

Kilocycles per sec (kiloHertz)

kHz:

KiloHertz

LF:

Low (<1 kHz) best frequency

LL:

Long latency response (>50 ms)

M:

Multiple best frequency

MC or mc:

Monaural contralateral

NR or nr:

No response

P:

Posterior auditory field

PES or pes:

Posterior ectosylvian sulcus

PSS or pss:

Pseudosylvian sulcus

RBAES:

Rostal bank of the anterior ectosylvian sulcus

RBPES:

Rostal bank of the posterior ectosylvian sulcus

SPL:

Sound pressure level

SSS or sss:

Suprasylvian sulcus

SW:

Swish

T:

Temporal auditory area

V:

Ventral auditory area

VBSSS:

Ventral bank of the suprasylvian sulcus

VP:

Ventroposterior field

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Author information

Author notes

  1. Thomas J. Imig

    Present address: Department of Physiology, Kansas University Medical Center, Kansas City, KS, 66103, USA

Authors and Affiliations

  1. Department of Neurophysiology and Waisman Center on Mental Retardation and Human Development, University of Wisconsin Medical School, Madison, Wisconsin, USA

    Thomas J. Imig, Richard A. Reale & John F. Brugge

Authors
  1. Thomas J. Imig
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  2. Richard A. Reale
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  3. John F. Brugge
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Editor information

Editors and Affiliations

  1. University of Wisconsin, Madison, Wisconsin, USA

    Clinton N. Woolsey

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© 1982 The HUMANA Press Inc.

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Imig, T.J., Reale, R.A., Brugge, J.F. (1982). The Auditory Cortex. In: Woolsey, C.N. (eds) Cortical Sensory Organization. Cortical Sensory Organization, vol 3. Humana Press. https://doi.org/10.1007/978-1-4612-5817-9_1

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  • DOI: https://doi.org/10.1007/978-1-4612-5817-9_1

  • Publisher Name: Humana Press

  • Print ISBN: 978-1-4612-5819-3

  • Online ISBN: 978-1-4612-5817-9

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