Nightmares Flashcards
What are nightmares?
- Characterized by awakenings primarily from REM sleep with clear recall of disturbing themes, typically fear-related
- A Extremely dysphoric dream, involves efforts to avoid threats to survival
measurement of the frequency of nightmares
- In studying nightmares there is a problem that retrospective estimates lead to under-reporting
Wood 1990
found that nightly log estimates are far higher than retrospective estimates
individual differences in nightmares can stem from…
factors such as
- psychological
- biological
- environmental influences
psychological factor differences in nightmares
- personality traits
- certain traits, such as neuroticism or openness have been linked to increased nightmares.
- individuals with higher level of neuroticism may be more prone to experiences anxiety - which can manifest nightmares
psychological factor differences in nightmares
- trauma and stress
- past traumatic experiences or ongoing stressors can increase the likelihood of nightmares
- trauma related nightmares may be a way for the mind to process and cope with distressing events
biological factor differences in nightmares
- brain chemistry imbalances in neurotransmitters
- can affect sleep patterns and increase likelihood
- for example - disruptions in serotonin levels have been linked to sleep disturbances and nightmares
biological factor differences in nightmares
- genetics
- may be a genetic predisposition to experiencing nightmares
- research suggests - genetics play a role in susceptibility to various sleep disorders
environmental factor differences in nightmares
sleep environment
- noise, light, temperature, comfort level - can all impact sleep quality and nightmares
medications - drugs
- disrupt sleep pattern - case nightmares
daily stressors
- such as work pressures, relationship problems can trigger nightmares
Sleep disorders that can lead to nightmares
sleep apnea
- disrupt sleep patterns - increase likelihood
REM rebound
- occurs when there is an increase in the duration and intensity of REM sleep following a period of REM deprivation - can lead to vivid dreams and nightmares
Nightmare distress
Belicki 1992
- measures trait nightmares distress
- showed a moderate relationship between nightmare frequency and nightmare distress
Belicki 1992 - nightmare distress findings
shows that waking life negative well-being is more related to nightmare distress
relationship between individual differences in having a nightmare and trait nightmare distress
- refers to how certain personality traits can influence the frequency of nightmares
- most obvious factor associated with nightmare distress is nightmare frequency
Belicki - correlation of nightmare frequency and distress
- it is relatively small
- indicated that additional factors might affect nightmare distress
- the findings that psychopathology measures are more related to nightmare distress than to nightmare frequency suggest that factors such as neuroticism are not only associated with nightmare frequency but can also add to the distress of nightmares
Zadra 2000
showed that poor well being is related to nightmare frequency but not to bad dream frequency