Spectro-Temporal Methods in Primary Auditory Cortex

Abstract

In Primary Auditory Cortex (AI) of ferrets, we characterize the spectro-temporal properties of cells responses. We find that the responses correspond to temporal modulations from 4 to 40 Hz, and spectral modulations from 0 to 2 cycles/octave, in the stimulus spectro-temporal envelope. The Spectro-Temporal Response Function (STRF) is the linear component of the response. It is an excellent predictor of response. Different methods of determining the STRF are in good agreement, make similar (and similarly accurate) predictions. This briefing examines Spike-Triggered Averaging. Spike-Triggered Averaging is an effective method to measure the STRF, when used with Temporally Orthogonal Ripple Combinations (TORCs) as stimuli. Spike-Triggered Averaging methods do not depend on quadrant separability, and provide a good method for seeking non-quadrant separable responses.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA446284

Entities

People

  • David Klein
  • Didier A. Depireux
  • Jonathan Simon
  • Shihab A Shamma

Organizations

  • University of Maryland

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  • Abstracts
  • Amplitude
  • Broadband
  • Electrical Engineering
  • Engineering
  • Frequency
  • Frequency Bands
  • Information Operations
  • Linearity
  • Maryland
  • Modulation
  • Quadrants
  • Spectra
  • Transfer Functions
  • Two Dimensional
  • Universities
  • Waveforms

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  • Computational Modeling and Simulation
  • Linear Algebra
  • Neuroscience