False memories formation is increased in individuals with insomnia

Area of Science:

• Cognitive Psychology
• Sleep Science
• Neuroscience

Background:

• Sleep influences false memory formation, with sleep loss impairing memory retrieval.
• Research on sleep and false memories has largely excluded individuals with insomnia, who have objectively impaired sleep.
• Insomnia is linked to cognitive impairments, particularly in prefrontal functioning, potentially affecting source monitoring and false memory generation.

Purpose of the Study:

• To compare false memory production in individuals with insomnia symptoms versus good sleepers.
• To investigate the influence of stimulus category (neutral vs. sleep-related) on false memory formation in both groups.
• To explore the role of source monitoring deficits in false memory generation among individuals with insomnia.

Main Methods:

• Comparative study design.
• Utilized a false memory paradigm.
• Assessed source monitoring abilities.
• Included assessment of stimulus category effects (neutral and sleep-related).

Main Results:

• False memories were globally increased in participants with insomnia symptoms compared to good sleepers.
• Individuals with insomnia symptoms showed reduced source monitoring ability.
• False memory production in the insomnia group was significantly modulated by stimulus category.

Conclusions:

• Insomnia symptoms are associated with heightened susceptibility to false memories.
• Impaired source monitoring may underlie increased false memory formation in individuals with insomnia.
• The type of stimuli processed differentially impacts false memory generation in those with insomnia symptoms.