ERIC Number: EJ1020974
Record Type: Journal
Publication Date: 2013-Dec
Abstractor: As Provided
Reference Count: N/A
Inactivation of Medial Prefrontal Cortex or Acute Stress Impairs Odor Span in Rats
Davies, Don A.; Molder, Joel J.; Greba, Quentin; Howland, John G.
Learning & Memory, v20 n12 p665-669 Dec 2013
The capacity of working memory is limited and is altered in brain disorders including schizophrenia. In rodent working memory tasks, capacity is typically not measured (at least not explicitly). One task that does measure working memory capacity is the odor span task (OST) developed by Dudchenko and colleagues. In separate experiments, the effects of medial prefrontal cortex (mPFC) inactivation or acute stress on the OST were assessed in rats. Inactivation of the mPFC profoundly impaired odor span without affecting olfactory sensitivity. Acute stress also significantly reduced odor span. These findings support a potential role of the OST in developing novel therapeutics for disorders characterized by impaired working memory capacity.
Descriptors: Brain Hemisphere Functions, Stress Variables, Olfactory Perception, Animals, Short Term Memory
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A