Skip Navigation
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.

National Institute of Environmental Health Sciences

Use this QR code to view the newest version of this document
Use this QR code to view the newest version of this document

Your Environment. Your Health.

Publication Detail

Title: Ontogeny of control over the acoustic startle reflex by visual prestimulation in the rat.

Authors: Parisi, T; Ison, J R

Published In Dev Psychobiol, (1981 Jul)

Abstract: In Experiment I, rats 13-35 days of age were presented with acoustic startle stimuli in conjunction with light flashes or noise bursts at 4-320 msec lead times. Inhibition of the startle reflex by leading noise bursts was present on Days 13-15, whereas light flashes were not effective until Days 21-23. In Experiment II, 3 intensities of noise and 3 intensities of light preceded the reflex-eliciting stimuli on Days 16 and 35. All intensities of noise were effective on Day 16, whereas no visual stimuli were. On Day 35, all stimuli were effective. These data reveal that intrinsic visual structures and/or connections between these structures and reflex-control mechanisms mature relatively late in the rat.

PubMed ID: 7250520 Exiting the NIEHS site

MeSH Terms: No MeSH terms associated with this publication

Back
to Top