How emotions impact sleep: A quantitative review of experiments
Zlatan Krizan1, Nicholas A Boehm1, Caroline B Strauel1
1Department of Psychology, Iowa State University, USA.
Sleep Medicine Reviews
|December 28, 2023
Summary
Negative emotions delay sleep onset latency, according to a meta-analysis of experimental studies. More research is needed to understand the complex relationship between emotions and sleep quality.
Area of Science:
- Psychology
- Sleep Science
Background:
- The interplay between sleep and emotion is well-established, yet the causal effect of emotions on sleep remains underexplored.
- Existing research has primarily focused on sleep's influence on emotional regulation, neglecting the reverse causality.
Approach:
- A meta-analysis synthesized data from 31 experimental studies investigating the impact of emotion inductions on sleep parameters.
- Methodological quality and theoretically relevant features, including emotion types and sleep parameters, were assessed as potential moderators.
Key Points:
- Emotion inductions significantly delayed sleep onset latency (average delay of 3.36 minutes).
- No significant effects were found for other sleep parameters, suggesting a specific impact on sleep initiation.
- Study heterogeneity and variable methodological quality indicate a need for more rigorous research.
Conclusions:
- The findings support the hypothesis that negative emotions can delay sleep onset.
- Further targeted research is required to elucidate the nuanced relationship between specific emotional states and various sleep parameters.
Related Concept Videos
01:11Understanding Sleep
229
Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
229
01:18Nightmares and Night Terrors
93
Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares...
Nightmares...
93
01:20Physiology of Emotion
854
The physiology of emotions is a multifaceted process involving the autonomic nervous system, brain structures, hormones, and neurotransmitters. This intricate interplay dictates how emotions manifest in the body and influence behavior.
Autonomic Nervous System
The autonomic nervous system (ANS) plays a critical role in emotional responses by regulating involuntary physiological functions. It consists of two main components: the sympathetic and parasympathetic systems. The sympathetic system...
Autonomic Nervous System
The autonomic nervous system (ANS) plays a critical role in emotional responses by regulating involuntary physiological functions. It consists of two main components: the sympathetic and parasympathetic systems. The sympathetic system...
854
01:25Factors Affecting Perception
1.6K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...
1.6K
01:13Insufficient Sleep and Sleep Deprivation
146
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
146
01:24Sleep-Wake Cycles
1.3K
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
1.3K