Oct, 1, 2023

Vol.30 No.2, pp. 84-88


Review

  • Korean Journal of Biological Psychiatry
  • Volume 15(4); 2008
  • Article

Review

Korean Journal of Biological Psychiatry 2008;15(4):254-64. Published online: Apr, 1, 2008

Neural Substrates of Fear Based on Animal and Human Studies

  • Kwangyeol Baek, MS1;Jaeseung Jeong, PhD1;Min-Sun Park, BA2; and Jeong-Ho Chae, MD, PhD3;
    1;Department of Bio and Brain Engineering, KAIST, Daejeon, 2;Department of Psychology, Graduate school, Sungshin Women's University, Seoul, 3;Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea
Abstract

Objectives:The neural substrate of fear is thought to be highly conserved among species including human. The purpose of this review was to address the neural substrates of fear based on recent findings obtained from animal and human studies.

Methods:Recent studies on brain regions related to fear, particularly fear conditioning in rodents and humans, were extensively reviewed.

Results:This paper suggests high consistency in anatomical structure and physiological mechanisms for fear perception, response, learning and modulation in animals and humans.

Conclusions:Fear is manifested and modulated by well conserved neural circuits among species interconnected with the amygdala, such as the hippocampus and the ventromedial prefrontal cortex. Further research is required to incorporate findings from animal studies into a better understanding of neural circuitry of fear in human in a translational approach.

Keywords Fear;Fear conditioning;Amygdala;Neuroanatomy;Translational neuroscience.