Scientists at University of Utah release new data on behavior
2009 AUG 4 - (NewsRx.com) -- "It has been proposed that the hippocampus and subcortical structures interact during the processing of fear and anxiety-related information. It has been demonstrated that the subcortical efferents from CA3 and CA1 can be selectively disrupted without concomitant disruption to the afferents," researchers in the United States report. "The present experiment was designed to evaluate the role of CA3 efferents via the fimbria and the CA1 efferents via the dorsal fornix for encoding and consolidation/retrieval of classical fear conditioning. The present data suggest that the subcortical projections from CA3 and CA1 are differentially involved in the processing of classical fear conditioning, with CA3 subcortical efferents supporting acquisition of both cued and contextual fear but only supporting retention of contextual fear and CA1 subcortical efferents supporting the encoding and retrieval of both cited and contextual fear," wrote M.R. Hunsaker and colleagues, University of Utah. The researchers concluded: "These data further suggest that all hippocampal efferents are not homogeneous. and that the hippocampus and subcortex interact to process conditioned fear.." Hunsaker and colleagues published their study in Behavioral Neuroscience (A Behavioral Analysis of the Role of CA3 and CA1 Subcortical Efferents During Classical Fear Conditioning. Behavioral Neuroscience, 2009;123(3):624-630). For additional information, contact R.P. Kesner, University of Utah, Dept. of Psychology, 380 South, 1530 East, Room 502, Salt Lake City, UT 84112, USA. Publisher contact information for the journal Behavioral Neuroscience is: American Psychological Association, 750 First St. NE, Washington, DC 20002-4242, USA. Keywords: United States, Salt Lake City, Behavior, Neuroscience, University of Utah. This article was prepared by Life Science Weekly editors from staff and other reports. Copyright 2009, Life Science Weekly via NewsRx.com.
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