Lack of Appetitive Arousal Effects on Sensory Processing of Auditory Evoked Potentials.
HUMAN ENGINEERING LAB ABERDEEN PROVING GROUND MD
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The purpose of the present report is to investigate the selective processes within the central nervous system where relevant sensory information is perceived while irrelevant information is rejected. Three experiments were conducted to examine whether irrelevant auditory information is rejected in the unanesthetized cat, with middle-ear muscles cut, during food deprivation. Since food deprivation can produce a state of heightened EEG arousal, this increased arousal can result in the activation of the inhibitory mechanisms and produce attenuation of click-evoked potentials in the auditory pathways. The results consistently show that increased food deprivation had no significant arousal effects or changes in the click-evoked responses recorded along the auditory pathway. Author
- Anatomy and Physiology