Scripps VIVO scripps research logo

  • Index
  • Log in
  • Home
  • People
  • Organizations
  • Research
  • Events
Search form

Electrophysiological response to ethanol in P-rats and NP-rats

Academic Article
uri icon
  • Overview
  • Research
  • Identity
  • Additional Document Info
  • View All
scroll to property group menus

Overview

authors

  • Ehlers, Cindy
  • Chaplin, R. I.
  • Lumeng, L.
  • Li, T. K.

publication date

  • August 1991

journal

  • Alcoholism-Clinical and Experimental Research  Journal

abstract

  • Event-related potentials (ERPs) have been successfully used in human subjects to evaluate alcoholics as well as those at risk for the future development of alcoholism. In the present study, two lines of rats, those with a preference for ethanol consumption (P) and those not preferring (NP) to drink ethanol were studied using ERP-producing stimuli. Rats were implanted with electrodes in the frontal cortex and dorsal hippocampus (DHPC). A passive auditory "oddball" paradigm was used to record ERP responses following saline and two doses (0.5, 1.0 g/kg) of ethanol. P and NP rats differed under the saline condition in that P rats had smaller N1-like ERP components and larger P2 waves in both cortex and hippocampus. P and NP rats were also found to differ in response to ethanol administration. NP rats evidenced dose-dependent reductions in ERP component amplitudes such as the N1 recorded from cortical sites. P rats did not have such reductions in N1 amplitudes and in fact, displayed increased N1 amplitudes in hippocampal sites. These studies provide further electrophysiological evidence that rats with a genetically influenced preference for ethanol consumption differ from nonpreferring rats at baseline and have a less intense depressant or more stimulating response to ethanol challenge.

subject areas

  • Alcohol Drinking
  • Analysis of Variance
  • Animals
  • Ethanol
  • Evoked Potentials, Auditory
  • Male
  • Rats
  • Rats, Inbred Strains
scroll to property group menus

Research

keywords

  • ETHANOL
  • EVENT-RELATED POTENTIALS
  • HIPPOCAMPUS
scroll to property group menus

Identity

International Standard Serial Number (ISSN)

  • 0145-6008

Digital Object Identifier (DOI)

  • 10.1111/j.1530-0277.1991.tb00590.x

PubMed ID

  • 1928653
scroll to property group menus

Additional Document Info

start page

  • 739

end page

  • 744

volume

  • 15

issue

  • 4

©2021 The Scripps Research Institute | Terms of Use | Powered by VIVO

  • About
  • Contact Us
  • Support