Sleep and its association with aggression among prisoners: Quantity or quality?

Area of Science:

• Forensic Psychology
• Sleep Science
• Cognitive Neuroscience

Background:

• Sleep disturbances are prevalent in correctional populations.
• The relationship between sleep and aggression is complex and warrants further investigation.
• The cognitive perception of sleep quality remains under-explored in relation to aggression.

Purpose of the Study:

• To investigate the association between self-reported sleep quality and quantity and aggression motivation and hostile cognition.
• To examine the role of sleep perception as a cognitive factor influencing aggression.
• To explore these relationships in a sample of male prisoners.

Main Methods:

• Two independent studies were conducted with adult male prisoners.
• Participants completed measures of sleep quality, sleep quantity, implicit and explicit aggression, aggression motivation, and hostile attribution biases.
• Study 1 involved 95 prisoners; Study 2 involved 141 prisoners.

Main Results:

• Perception of poor sleep quality, not objective sleep indicators or quantity, was associated with higher levels of aggression (implicit, explicit, reactive, proactive).
• Poor sleep perception correlated with lower prosocial attribution tendencies.
• Prisoners perceiving poor sleep reported more aggression perpetration and higher aggression levels.

Conclusions:

• The subjective perception of sleep quality is a critical cognitive component linking sleep to aggression.
• Future research and interventions should consider the cognitive appraisal of sleep.
• Understanding sleep perception is vital for addressing aggression in forensic populations.