Effects of pre-sleep cognitive intrusions on subjective sleep and next-day cognitive performance in insomnia
Pre-sleep cognitive intrusions about next-day activities, or proprioceptive and environmental stimuli are thought to trigger insomnia in neurocognitive models. Recent research showed that intrusive cognitions at bedtime may interact with sleep in influencing next-day emotional functioning; their effects on cognitive functioning, however, is largely unknown. We tested the effects of pre-sleep cognitive intrusions on subjective sleep and next-day cognitive performance in 80 participants, either with chronic insomnia or good sleepers.