Validity of head-dipping as a measure of exploration in a modified hole-board

Validity of head-dipping as a measure of exploration in a modified hole-board 213 44 44 1 1 Sandra E. File Ann G. Wardill Pharmacology Department, The School of Pharmacy University of London England Pharmacology Department Roche Products Limited England Abstract To determine whether head-dipping could be validated as a measure of exploration a modified hole-board was developed with four holes in the floor, under which novel objects could be placed. Two criteria for considering head-dipping as a measure of exploration were proposed: firstly, that it should reflect novel aspects of the environment; secondly, that exposure to the hole-board should result in information storage. That head-dipping reflected novelty was indicated by the longer duration of head-dips on initial exposure if objects were present, and also on a second exposure when objects were introduced for the first time. Information storage was indicated by habituation on re-exposure to the hole-board. A significant positive correlation between head-dipping in the “four” and “sixteen” hole-boards was obtained for rats, but not for mice. This provided some indirect evidence that rat head-dipping in the “sixteen hole-board” also reflects exploration. (+)Amphetamine and alcohol were tested in the modified hole-board, and (+)amphetamine decreased and alcohol increased the frequency and duration of head-dips. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Psychopharmacology Springer Journals

Validity of head-dipping as a measure of exploration in a modified hole-board

Psychopharmacology, Volume 44 (1) – Jan 1, 1975

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Publisher
Springer Journals
Copyright
Copyright © 1975 by Springer-Verlag
Subject
Biomedicine; Pharmacology/Toxicology; Psychiatry
ISSN
0033-3158
eISSN
1432-2072
DOI
10.1007/BF00421184
Publisher site
See Article on Publisher Site

Abstract

213 44 44 1 1 Sandra E. File Ann G. Wardill Pharmacology Department, The School of Pharmacy University of London England Pharmacology Department Roche Products Limited England Abstract To determine whether head-dipping could be validated as a measure of exploration a modified hole-board was developed with four holes in the floor, under which novel objects could be placed. Two criteria for considering head-dipping as a measure of exploration were proposed: firstly, that it should reflect novel aspects of the environment; secondly, that exposure to the hole-board should result in information storage. That head-dipping reflected novelty was indicated by the longer duration of head-dips on initial exposure if objects were present, and also on a second exposure when objects were introduced for the first time. Information storage was indicated by habituation on re-exposure to the hole-board. A significant positive correlation between head-dipping in the “four” and “sixteen” hole-boards was obtained for rats, but not for mice. This provided some indirect evidence that rat head-dipping in the “sixteen hole-board” also reflects exploration. (+)Amphetamine and alcohol were tested in the modified hole-board, and (+)amphetamine decreased and alcohol increased the frequency and duration of head-dips.

Journal

PsychopharmacologySpringer Journals

Published: Jan 1, 1975

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