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Related Concept Videos

False Memories01:18

False Memories

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False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information...
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Role of Affect in Interpersonal Attraction01:24

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Affect plays a crucial role in shaping interpersonal evaluations and perceptions. Emotions influence how individuals judge and respond to others, often determining whether interactions are viewed positively or negatively. This effect can manifest directly through interactions with the person in question or indirectly via associations with unrelated emotional experiences.Direct Effects of Affect on AttractionAffect directly influences interpersonal attraction when a person’s behavior...
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Insufficient Sleep and Sleep Deprivation01:13

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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.
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The Influence of Affect on Cognition01:29

The Influence of Affect on Cognition

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Positive affect significantly influences cognitive processes, including evaluation, memory, creativity, and social judgments. Compared to negative affect, positive emotional states promote more favorable interpretations of stimuli, cognitive flexibility, and heuristic processing. These effects highlight emotions' powerful role in shaping how individuals perceive, remember, and interact with the world.Influence on Evaluation and AttributionWhen individuals experience positive affect, they are...
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The Influence of Cognition on Affect01:29

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Cognition plays a pivotal role in shaping emotional experiences, as demonstrated by Schachter and Singer’s two-factor theory of emotion. According to this model, emotion arises from a combination of physiological arousal and cognitive interpretation. The body’s physiological response to stimuli is ambiguous and only gains emotional significance through cognitive labeling. For instance, an increased heart rate and adrenaline surge while standing near an attractive person may be...
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Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
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Updated: Feb 4, 2026

Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory
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When does sleep affect veridical and false memory consolidation? A meta-analysis.

Chloe Rhianne Newbury1, Padraic Monaghan2

  • 1Lancaster University, Lancaster, UK. c.newbury@lancaster.ac.uk.

Psychonomic Bulletin & Review
|September 29, 2018
PubMed
Summary
This summary is machine-generated.

Sleep does not consistently improve or impair memory consolidation. Its effects on accurate and false memories depend on list length and whether recall or recognition tests are used.

Keywords:
False memoryMemory consolidationMeta-analysisSleep

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Sleep Research

Background:

  • Sleep is broadly understood to support memory encoding, consolidation, and retrieval.
  • However, the precise conditions and extent to which sleep influences memory remain under investigation.
  • Existing research suggests sleep's role in memory may be context-dependent.

Purpose of the Study:

  • To conduct a meta-analysis examining sleep's impact on both accurate (veridical) and false memory consolidation.
  • To investigate the Deese/Roediger-McDermott (DRM) paradigm for memory of thematically related words.
  • To identify moderating factors influencing sleep's effect on memory.

Main Methods:

  • A meta-analysis was performed on studies utilizing the Deese/Roediger-McDermott (DRM) paradigm.
  • The analysis assessed the effects of sleep on veridical and false memory consolidation.
  • Key variables examined included word list length and memory test type (recall vs. recognition).

Main Results:

  • No overall significant effect of sleep on either accurate or false memories was found.
  • Sleep's influence on memory was moderated by the number of words in the themed list.
  • Sleep effects were more pronounced in recall tests compared to recognition tests.

Conclusions:

  • Sleep's impact on memory consolidation, including false memories, is not uniform.
  • The number of associated words and the type of memory test significantly moderate sleep's effects.
  • Understanding these constraints is crucial for accurately assessing sleep's role in memory processing.