Photoperiod alters fear responses and basolateral amygdala neuronal spine density in white-footed mice (Peromyscus leucopus)

► Shorts day lengths enhance fear memory in white-footed mice (Peromyscus leucopus). ► Short days increase spine density in the basolateral amygdala. ► Short days do not alter dendritic spines or arborization in the infralimbic PFC. Photoperiodism is a biological phenomenon in which environmental da...

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Veröffentlicht in:	Behavioural brain research 2012-08, Vol.233 (2), p.345-350
Hauptverfasser:	Walton, James C., Haim, Achikam, Spieldenner, James M., Nelson, Randy J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic Stimulation - adverse effects Amygdala - cytology Amygdala - physiology Analysis of Variance Animals Auditory fear conditioning BLA Conditioning (Psychology) Corticosterone - blood Dendritic Spines - physiology Fear Freezing Reaction, Cataleptic Male Neurons - ultrastructure Peromyscus Photoperiod Predator avoidance PTSD Radioimmunoassay Silver Staining Spine density
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