The role of small changes in the acoustic environment in modifying the startle reflex.

Journal of Experimental Psychology. Animal Behavior Processes
R R MarshG M Schwartz

Abstract

When either the intensity or frequency spectrum of an approximately 70-db. SPL narrow-band noise was abruptly changed by a small amount, the rat's response to a startle stimulus presented 64 msec later was inhibited. When similar small frequency changes preceded the startle stimulus by ony 5 msec, the latency of the startle response was reduced, but even relatively large changes in intensity of the antecedent stimulus had no effect on response latency. These findings provide added support for the generalization that the neural processes associated with startle are engaged by small changes in the auditory environment. They also point to a measure of separation between the processes responsible for inhibition and those responsible for latency shift.

Citations

Sep 1, 1993·Perception & Psychophysics·D S LeitnerM A Shawaryn
Jun 2, 2005·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Melissa M McClureR Holly Fitch
May 23, 2009·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Steven W ThrelkeldR Holly Fitch
Feb 1, 1984·Perception & Psychophysics·J CranneyM E Cohen
Apr 13, 2017·Cognitive Processing·Albert B Poje, Diane L Filion
Jan 1, 1985·Perception & Psychophysics·J Cranney, M E Cohen

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