scholarly journals Escape learning deficit after overcrowded rearing in rats: Test of a helplessness hypothesis

1974 ◽  
Vol 3 (1) ◽  
pp. 54-56 ◽  
Author(s):  
Daniel J. Goeckner ◽  
William T. Greenough ◽  
Steven F. Maier
2011 ◽  
Vol 121 (1) ◽  
pp. 16-24 ◽  
Author(s):  
Mohsen Taghizadeh ◽  
Abolghassem Djazayery ◽  
Mahmoud Salami ◽  
Mohammad Reza Eshraghian ◽  
Sayyed Alireza Talaei Zavareh

2021 ◽  
pp. 212-230
Author(s):  
Svetlana Yakovleva ◽  
Joris van Hoboken

2015 ◽  
Vol 9s1 ◽  
pp. JEN.S32735
Author(s):  
Darryl J. Mayeaux ◽  
Sarah M. Tandle ◽  
Sean M. Cilano ◽  
Matthew J. Fitzharris

In animal models of depression, depression is defined as performance on a learning task. That task is typically escaping a mild electric shock in a shuttle cage by moving from one side of the cage to the other. Ovarian hormones influence learning in other kinds of tasks, and these hormones are associated with depressive symptoms in humans. The role of these hormones in shuttle-cage escape learning, however, is less clear. This study manipulated estradiol and progesterone in ovariectomized female rats to examine their performance in shuttle-cage escape learning without intentionally inducing a depressive-like state. Progesterone, not estradiol, within four hours of testing affected latencies to escape. The improvement produced by progesterone was in the decision to act, not in the speed of learning or speed of escaping. This parallels depression in humans in that depressed people are slower in volition, in their decisions to take action.


2017 ◽  
Vol 82 (4) ◽  
pp. 543-553 ◽  
Author(s):  
Anne Weissbach ◽  
Elisa Werner ◽  
Julien F. Bally ◽  
Sinem Tunc ◽  
Sebastian Löns ◽  
...  

2007 ◽  
Vol 52 (8) ◽  
pp. 1691-1700 ◽  
Author(s):  
Caroline Bouvrais-Veret ◽  
Stéphanie Weiss ◽  
Annie Andrieux ◽  
Annie Schweitzer ◽  
J. Michael McIntosh ◽  
...  

1981 ◽  
Vol 52 (2) ◽  
pp. 499-502 ◽  
Author(s):  
Robert J. Kirkby ◽  
Stephen Polgar ◽  
Ian R. Coyle

Learning to run down a straight alley for a food reward was investigated in rats with lesions of the telencephalon. Over 84 trials the running latencies of rats with lesions of the caudate nucleus were significantly greater than those of subjects with lesions of the frontal cortex or sham-lesioned rats. The running latencies of the cortical- and the sham-lesioned groups were not significantly different. It was suggested that the performance of the caudotomized rats reflected a learning deficit.


1987 ◽  
Vol 26 (2-3) ◽  
pp. 219-220
Author(s):  
G. Goodall ◽  
J.-M. Guastavino

Sign in / Sign up

Export Citation Format

Share Document