A single episode of stress during adolescence impairs short-term memory and increases risk behaviour in an animal model of attention-deficit/hyperactivity disorder.

Behav Processes

Laboratory of Neurobiology of Animal Behaviour, Department of Neurobiology, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil. Electronic address:

Published: June 2021

Adolescence is a period of increased sensitivity to stress and vulnerability to the manifestation of psychiatric disorders, such as attention-deficit/hyperactivity disorder (ADHD). Nevertheless, the relationship between stress during adolescence and ADHD is still unclear. Knowing that stress can have long-term consequences, the aim of this study was to evaluate the impact of a single episode of restraint stress during adolescence on locomotion, risk behaviour and short-term memory in adult spontaneously hypertensive rats (SHR), a validated animal model of ADHD. A single episode of stress during adolescence increased risk behaviour and impaired short-term recognition memory, but did not alter locomotion in adult SHR. These findings show that stress during adolescence, even acute, may lead to long-term behavioural consequences in an animal model of ADHD.

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http://dx.doi.org/10.1016/j.beproc.2021.104395DOI Listing

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