Different rankings of inbred mouse strains on the Morris maze and a refined 4-arm water escape task

Douglas Wahlsten, Sean F. Cooper, John Jr Crabbe

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

The submerged platform or Morris water escape task is widely used to study genetic variation in spatial learning and memory, but interpretation is sometimes difficult because of wall hugging, jumping off the platform, floating or non-spatial swim strategies. We modified the task by introducing four wide arms into the circular tank and adding features that reduced, eliminated, or compensated for several competing behaviors. Three versions of the 4-arm task were evaluated in detail, and the third version yielded good results for six of eight inbred strains. Furthermore, the 4-arm task could be scored adequately without computerized video tracking. Although performance on the 4-arm task was generally superior to the Morris maze, the extent of the improvement was strain dependent. Two strains with retinal degeneration (C3H/HeJ, FVB/NJ) performed poorly on both the Morris and 4-arm mazes, whereas C57BL/6J and DBA/2J did well on both mazes. A/J performed poorly on the Morris task but became very proficient on the 4-arm maze, despite its strong tendency to hug the walls of the tank. The BALB/cByJ strain, on the other hand, exhibited the best probe trial performance on the Morris maze but was very slow in acquiring the 4-arm task. We conclude that no single task can reveal the full richness of spatially guided behavior in a wide range of mouse genotypes.

Original languageEnglish (US)
Pages (from-to)36-51
Number of pages16
JournalBehavioural Brain Research
Volume165
Issue number1
DOIs
StatePublished - Nov 30 2005

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Inbred Strains Mice
Retinal Degeneration
Water
Genotype
Spatial Memory
Spatial Learning

Keywords

  • Gene-environment interaction
  • Learning
  • Mouse Phenome Project
  • Spatial memory
  • Swimming
  • Thigmotaxis

ASJC Scopus subject areas

  • Behavioral Neuroscience

Cite this

Different rankings of inbred mouse strains on the Morris maze and a refined 4-arm water escape task. / Wahlsten, Douglas; Cooper, Sean F.; Crabbe, John Jr.

In: Behavioural Brain Research, Vol. 165, No. 1, 30.11.2005, p. 36-51.

Research output: Contribution to journalArticle

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