Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1962 Jun 15;136(3520):982-3.
doi: 10.1126/science.136.3520.982.

Persistent fear responses in rhesus monkeys to the optical stimulus of "looming"

Persistent fear responses in rhesus monkeys to the optical stimulus of "looming"

W SCHIFF et al. Science. .

Abstract

The approach of an object corresponds with a spatiotemporal optical stimulus consisting of a symmetrical expansion of a closed contour in the field of view. The visual equivalent of impending collision was isolated and compared with its sequential inversion. Infant and adult rhesus monkeys manifested persistent avoidance responses to "looming" but not to the inverse. This visual stimulus alone is a strong exciter of avoidance, and the response appears early in life.

PubMed Disclaimer

Similar articles

Cited by

LinkOut - more resources