Fear-conditioning to Unpredictable Threats Reveals Sex Differences in Rat Fear-potentiated Startle (FPS)
Overview
Overview
Authors
Affiliations
Affiliations
Soon will be listed here.
Abstract
Highlights: Male and female rats have comparable startle amplitudes when corrected for body weightFemale rats show higher foot-shock reactivity than males during fear-conditioningFemale rats show reduced fear discrimination vs. males in the classic FPSReversed signal-threat order increases contextual fear in both sexesExposure to unpredictable threats increases startle in general and contextual fear only in females.
References
1.
Grillon C, Ernst M
. A way forward for anxiolytic drug development: Testing candidate anxiolytics with anxiety-potentiated startle in healthy humans. Neurosci Biobehav Rev. 2020; 119:348-354.
PMC: 7736469.
DOI: 10.1016/j.neubiorev.2020.09.024.
View
2.
Davis M, Falls W, Campeau S, Kim M
. Fear-potentiated startle: a neural and pharmacological analysis. Behav Brain Res. 1993; 58(1-2):175-98.
DOI: 10.1016/0166-4328(93)90102-v.
View
3.
Abend R, Ruiz S, Bajaj M, Harrewijn A, Linke J, Atlas L
. Threat imminence reveals links among unfolding of anticipatory physiological response, cortical-subcortical intrinsic functional connectivity, and anxiety. Neurobiol Stress. 2022; 16:100428.
PMC: 8749274.
DOI: 10.1016/j.ynstr.2022.100428.
View
4.
Chen L, Tzeng W, Chuang J, Cherng C, Gean P, Yu L
. Roles of testosterone and amygdaloid LTP induction in determining sex differences in fear memory magnitude. Horm Behav. 2014; 66(3):498-508.
DOI: 10.1016/j.yhbeh.2014.07.008.
View
5.
Urien L, Stein N, Ryckman A, Bell L, Bauer E
. Extended amygdala circuits are differentially activated by context fear conditioning in male and female rats. Neurobiol Learn Mem. 2021; 180:107401.
PMC: 8076097.
DOI: 10.1016/j.nlm.2021.107401.
View