Control of Biosonar Behavior by the Auditory Cortex

Abstract

Lesion experiments were conducted to examine whether the functional organization of the mustached bat's auditory cortex is related to biosonar behavior in the manner inferred from previous neurophysiological experiments. Bats were swung on a pendulum towards a target to elicit echolocation behavior, and their adjustments in their biosonar signals measured: Doppler-shift compensation (to correct for Doppler-shift in echoes), intensity compensation, and rate and duration adjustments. Following bilateral aspiration ablations of the entire auditory cortex, the amount and stability of Doppler-shift compensation was significantly less, and the reaction time for this response significantly greater than pre-ablation. Keywords: Biosonar; Echolocation; Doppler shift; Auditory cortex; Cingulate cortex; Vocalizations; Bats.

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Document Details

Document Type
Technical Report
Publication Date
Nov 28, 1988
Accession Number
ADA205142

Entities

People

  • Nobuo Suga
  • Stephen Gaioni

Organizations

  • Washington University in St. Louis

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Ablation
  • Amplitude
  • Amplitude Modulation
  • Animal Behavior
  • Biosonar
  • Compensation
  • Discrimination
  • Doppler Effect
  • Frequency
  • Heart Rate
  • Modulation
  • Pendulums
  • Pulse Amplitude
  • Reaction Time
  • Security
  • Universities
  • Vocalization

Fields of Study

  • Biology
  • Psychology

Readers

  • Aerospace Engineering
  • Neuroscience
  • Organizational Psychology.

Technology Areas

  • AI & ML