Fear Changes Hippocampus Neuropns

Fear in mice catalyzes rapid accumalation of EphrinB2 pyramidal neurons of the CA1 area.

This study suggests that rapid accumulation of EphrinB2 in hippocampal CA1 neurons is involved in the behavioural and cellular modifications induced by contextual fear conditioning. A similar mechanism does not appear to occur in lateral amygdala neurons, in spite of the robust behavioural and cellular modifications induced in such structure by cued fear conditioning: Antonio Trabalzaa, Sandra Colazingaria, Carmelo Sgobiob, Arturo Bevilacqua. Contextual learning increases dendrite complexity and EphrinB2 levels in hippocampal mouse neurons. Behavioural Brain Research. doi:10.1016/j.bbr.2011.11.008.