Exponential decay of spatial memory of rats in a radial maze

Behavioral and Neural Biology
J J BolhuisP Ansmink

Abstract

The persistence of spatial memory of rats (n = 14) was investigated in an eight-arm radial maze. The animals were trained until the mean number of errors in the first eight choices was 0.2. The decay of performance with time was studied using delays of 5, 20, 60, 120, or 240 min between choices 4 and 5, during which the animal was removed from the apparatus. A delay of 60 min significantly impaired performance. The mean number of errors was not significantly different from the random choice level after a delay of 120 min. The increase in the number of errors with time was exponential. Comparison of the results with those of previous studies suggests that the nature of training may have effects on memory persistence in the radial maze.

References

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Citations

Jan 1, 1988·Physiology & Behavior·J J BolhuisR J Kramers
Jan 1, 1988·Pharmacology, Biochemistry, and Behavior·D B Peele, S P Baron
Nov 1, 1990·Behavioral and Neural Biology·E D LevinL L Butcher
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Jan 10, 2018·The British Journal of Mathematical and Statistical Psychology·Nicolas Gauvrit, Fabien Mathy
Nov 9, 2020·Hormones and Behavior·Alyssa F DeLarge, Peter J Winsauer
Apr 11, 2021·Reviews in the Neurosciences·Conor ThornberrySean Commins

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