A familiar conspecific is more effective than an unfamiliar conspecific for social buffering of conditioned fear responses in male rats

• Published in: Behavioural brain research Vol. 267; pp. 189 - 193
• Main Authors: Kiyokawa, Yasushi, Honda, Akira, Takeuchi, Yukari, Mori, Yuji
• Format: Journal Article
• Language: English
• Published: Shannon Elsevier B.V 01.07.2014; Elsevier
• Subjects: Amygdala; Amygdala - physiology; Animals; Behavioral psychophysiology; Biological and medical sciences; Conditioning (Psychology) - physiology; Electroshock; Exposure-type social buffering; Familiarity; Fear - physiology; Fear conditioning; Freezing; Freezing Reaction, Cataleptic - physiology; Fundamental and applied biological sciences. Psychology; HPA axis; Immunohistochemistry; Male; Motor Activity - physiology; Odorants; Olfactory Perception - physiology; Paraventricular Hypothalamic Nucleus - physiology; Proto-Oncogene Proteins c-fos - metabolism; Psychology. Psychoanalysis. Psychiatry; Psychology. Psychophysiology; Rats, Wistar - physiology; Rats, Wistar - psychology; Recognition (Psychology) - physiology; Social Behavior; Vertebrates: nervous system and sense organs; MOB; Amygdala; PVN; HPA axis; Exposure-type social buffering; Freezing; Fear conditioning; CS; LA; HPA; Familiarity; CeA; BA; Affect affectivity; Rat; Hypothalamohypophysoadrenal axis; Rodentia; Central nervous system; Male; Basal ganglion; Emotion emotionality; Encephalon; Fear; Vertebrata; Mammalia; Animal; Conditioning; Amygdaloid nucleus

•Social buffering by an unfamiliar conspecific suppressed conditioned fear responses.•The suppression was greater in the presence of a familiar conspecific.•Social buffering under both conditions shared the same neural mechanisms.•Familiar conspecifics are more effective than unfamiliar ones for soc...