Chapter

Lifelong Effects of Hormones on Brain Development: Relationship to Health and Disease

Bruce S. McEwen

in Extreme Fear, Shyness, and Social Phobia

Published in print October 1999 | ISBN: 9780195118872
Published online March 2012 | e-ISBN: 9780199848232 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195118872.003.0010

Series: Series in Affective Science

Lifelong Effects of Hormones on Brain Development: Relationship to Health and Disease

Show Summary Details

Preview

This chapter represents the neural circuits that underlie fear responses in animals and explores the possible implications for understanding fear and shyness in humans. It is shown in recent data that contextual and punctate auditory stimuli use different intra-amygdala pathways to access the central nucleus. There are two variables, similarity of a response to an animal's species-typical defensive behavior and degree of fear, that present two dimensions along which the reactive and active systems may interact. The amygdala appears to be the place where both learning and expression of fear responses take place.

Keywords: neural circuits; fear; shyness; humans; amygdala; defensive behavior

Chapter.  9116 words.  Illustrated.

Subjects: Clinical Psychology

Full text: subscription required

How to subscribe Recommend to my Librarian

Buy this work at Oxford University Press »

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.