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Implicit Memories

Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
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A Two-interval Forced-choice Task for Multisensory Comparisons
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Published on: November 9, 2018

Intermittent ambiguous stimuli: implicit memory causes periodic perceptual alternations.

J W Brascamp1, J Pearson, R Blake

  • 1Functional Neurobiology and Helmholtz Institute, Utrecht University, Utrecht, The Netherlands. j.w.brascamp@gmail.com

Journal of Vision
|September 18, 2009
PubMed
Summary
This summary is machine-generated.

Intermittent stimulus presentation creates a unique, periodic perceptual alternation cycle, not stable perception. This cycle

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Area of Science:

  • Cognitive Neuroscience
  • Computational Neuroscience
  • Psychophysics

Background:

  • Perceptual ambiguity leads to alternating interpretations of visual stimuli.
  • Intermittent stimulus presentation can stabilize perception by halting alternations.

Purpose of the Study:

  • Investigate perceptual alternations during prolonged intermittent stimulus viewing.
  • Characterize the nature and dependencies of alternations under intermittent viewing conditions.
  • Compare intermittent and continuous viewing effects on perceptual stability.

Main Methods:

  • Conducted psychophysical experiments with intermittent stimulus presentation.
  • Analyzed the frequency and regularity of perceptual alternations.
  • Developed a mathematical model of neural networks with competing interpretations.

Main Results:

  • Intermittent viewing results in infrequent, periodic alternations (minutes vs. seconds).
  • Alternation cycle duration increases with blank interval duration.
  • Perceptual stability arises from memory traces influencing neural network sensitivity.

Conclusions:

  • Intermittent presentation induces a distinct, periodic alternation cycle, not true stability.
  • Neural network models with memory explain both stabilization and periodic alternations.
  • Findings offer insights into the neural basis of perception and memory.