The medial geniculate, not the amygdala, as the root of auditory fear conditioning
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منابع مشابه
The medial geniculate, not the amygdala, as the root of auditory fear conditioning.
The neural basis of auditory fear conditioning (AFC) is almost universally believed to be the amygdala, where auditory fear memories are reputedly acquired and stored. This widely-accepted amygdala model holds that the auditory conditioned stimulus (CS) and the nociceptive unconditioned stimulus (US) first converge in the lateral nucleus of the amygdala (AL), and are projected independently to ...
متن کاملThe amygdala is essential for the development of neuronal plasticity in the medial geniculate nucleus during auditory fear conditioning in rats.
The medial geniculate nucleus of the thalamus (MGN) and the basolateral complex of the amygdala (BLA) are critical components of the neural circuit that mediates auditory fear conditioning. Several studies indicate that neurons in both the MGN and BLA exhibit associative plasticity of spike firing during auditory fear conditioning. In the present study, we examined whether the development of pl...
متن کاملChanges of synaptic efficacy in the medial geniculate nucleus as a result of auditory classical conditioning.
In this study we examined inputs to neurons in the medial subnucleus of the medial geniculate nucleus (mMG) for changes of synaptic efficacy associated with heart-rate conditioning to an auditory conditioned stimulus (CS). Conditioning-related changes of synaptic efficacy were measured in awake animals by examining mMG single-unit responses evoked by stimulation of one of two areas that send au...
متن کاملFunctional inactivation of the amygdala before but not after auditory fear conditioning prevents memory formation.
Two competing theories predict different effects on memory consolidation when the amygdala is inactivated after fear conditioning. One theory, based on studies using inhibitory avoidance training, proposes that the amygdala modulates the strength of fear learning, and post-training amygdala manipulations interfere with memory consolidation. The other, based on studies using Pavlovian fear condi...
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ژورنال
عنوان ژورنال: Hearing Research
سال: 2011
ISSN: 0378-5955
DOI: 10.1016/j.heares.2010.03.093