Document Detail


Thigmotactic responses in an open-field.
MedLine Citation:
PMID:  18297193     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The goal of the present study was to investigate the role of thigmotaxis (the tendency to remain close to vertical surfaces) in rat exploratory behavior in an open-field. Thigmotaxis was investigated in a parametric way, using 24 experimentally adult naive male Wistar rats (210-230 g). Exploratory behavior was studied in an open-field (N = 12) in 5-min sessions and behavior was analyzed in terms of where it occurred: in areas surrounded by two, one, or no walls. Another group of rats (N = 12) was studied in an open-field with blocks placed near two of the corners so as to make these corner areas surrounded by three walls. The floor of the open-fields was divided into 20-cm squares in order to locate the exact place of occurrence of each behavior. The following behaviors were recorded: entries into the squares, rearings, and groomings. In both types of open-field the rats chose to remain longer in the squares surrounded by the largest possible number of walls. In one of the open-fields, the mean time (seconds) spent in squares surrounded by two walls was longer than the time spent in squares surrounded by one or no walls (37.2, 7.7, and 1.8 s, respectively). In the other open-field, the mean time spent in squares surrounded by three walls was longer than the time spent in squares surrounded by two, one or no walls (41.7, 20.4, 7.0, and 2.6 s, respectively). Other measures presented a similar profile. These results indicate that rats are sensitive to the number of walls in an environment and prefer to remain close to them.
Authors:
M R Lamprea; F P Cardenas; J Setem; S Morato
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.]     Volume:  41     ISSN:  1414-431X     ISO Abbreviation:  Braz. J. Med. Biol. Res.     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-02-25     Completed Date:  2008-11-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8112917     Medline TA:  Braz J Med Biol Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  135-40     Citation Subset:  IM    
Affiliation:
Departamento de Psicología, Facultad de Ciencias Humanas, Universidad Nacional de Colombia - Sede Bogotá, Bogotá, Colombia.
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MeSH Terms
Descriptor/Qualifier:
Animals
Behavior, Animal / physiology*
Exploratory Behavior / physiology*
Grooming / physiology
Male
Motor Activity / physiology*
Rats
Rats, Wistar
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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