Related Experiment Video
Updated: Oct 16, 2026

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI
Published on: October 6, 2011
I Can't Watch: A Genetic and Circuit-Level Investigation of Observational Fear Learning
Michael Douglas Reed1, Gloria B Choi1
1McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Abstract:
In this issue of Neuron, Keum et al. (2018) identify a Nrxn3 variant that produces an enhancement of observational fear learning. Results suggest that Nrxn3 loss of function, specifically within somatostatin-positive interneurons of the anterior cingulate cortex, is responsible.
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