Abstract:Executive function deficits in Alzheimer's disease (AD) occur early in disease progression and may be predictive of cognitive decline. However, no preclinical studies have identified deficits in rewarded executive function in the commonly used APP/PS1 mouse model. To address this, we assessed 12-26 month old APP/PS1 mice on rewarded reversal and/or extinction tasks. 16-month-old, but not 13-or 26-monthold, APP/PS1 mice showed an attenuated rate of extinction. Reversal deficits were seen in 22-month-old, but no… Show more
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