Main Title |
Development of Locomotor Activity of Rat Pups in Figure-Eight Mazes. |
Author |
Ruppert, P. H. ;
Dean, K. F. ;
Reiter, L. W. ;
|
CORP Author |
Health Effects Research Lab., Research Triangle Park, NC. |
Year Published |
1985 |
Report Number |
EPA/600/J-85/109; |
Stock Number |
PB85-244309 |
Additional Subjects |
Maze learning ;
Rats ;
Laboratory animals ;
Social factors ;
Experiential factors ;
Reprints ;
Locomotor activity
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-244309 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
In a series of four experiments, social and experiential factors that influence the development of motor activity in rat pups were examined. Motor activity was monitored from postnatal days 13 to 21 as photocell interruptions in figure-eight mazes and comparisons were made between (1) pups maintained in a next box containing a dam and siblings and allowed access to the maze for 23 hr/day, (2) pups tested daily for 1 hr/day vs. pups tested only on postnatal days 15, 18, or 21, (3) pups tested daily for either 5 min, 30 min, or 1 hr/day, and (4) pups tested daily for 30 min/day either singly in a maze, paired with a littermate, or paired with an anesthetized pup of the same age. A monotonic increase in activity was seen for nest-box testing, minimal developmental change was seen for pups tested on only a single day or for pups tested with an anesthetized pup, whereas all other groups showed an inverted U-shaped profile of activity which was influenced by the duration of testing and/or the presence of a littermate. These data emphasize the relevance of environmental factors as determinants of preweaning behavior. |
Supplementary Notes |
Pub. in Developmental Psychobiology 18, n3 p247-260 Jun 85. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Development of Locomotor Activity of Rat Pups in Figure-Eight Mazes. |
PUB Date Free Form |
1985 |
Category Codes |
5J; 92B |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/11 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
531127066 |
Origin |
NTIS |
Type |
CAT |