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Related Concept Videos

Factors Affecting Perception01:25

Factors Affecting Perception

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.
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Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Subliminal Perception01:15

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Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
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Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
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Related Experiment Video

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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

Conflict-induced perceptual filtering.

Mike Wendt1, Aquiles Luna-Rodriguez, Thomas Jacobsen

  • 1Experimental Psychology Unit, Helmut-Schmidt-University/University of Federal Armed Forces Hamburg, Hamburg, Germany. mike.wendt@hsu-hh.de

Journal of Experimental Psychology. Human Perception and Performance
|October 19, 2011
PubMed
Summary
This summary is machine-generated.

Conflict-induced perceptual filtering helps reduce interference from distractors. This study shows that perceptual processing adjusts based on conflict, enhancing target detection in visual search tasks.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Conflict paradigms often define stimuli by perceptual features.
  • Reduced interference with fewer congruent trials suggests conflict-induced perceptual filtering.
  • Perceptual filtering involves adjusting processing weights for target and distractor features.

Purpose of the Study:

  • To investigate evidence for conflict-dependent perceptual filtering.
  • To determine if perceptual processing efficiency is modulated by conflict history.
  • To examine the role of stimulus features (location, color) in perceptual filtering.

Main Methods:

  • Administered a flanker task using stimulus location (Experiment 1) and color (Experiment 2).
  • Assessed processing efficiency using a visual search task with intermixed trials.
  • Manipulated the ratio of congruent to incongruent trials to induce varying levels of conflict.

Main Results:

  • Search times were significantly shorter for stimuli associated with target features compared to distractor features.
  • This target-feature advantage was amplified under conditions with a reduced congruent/incongruent ratio.
  • Findings indicate that conflict influences the allocation of perceptual resources.

Conclusions:

  • The study provides strong evidence for conflict-dependent perceptual filtering.
  • Perceptual systems dynamically adjust processing priorities in response to conflict.
  • This mechanism enhances the efficiency of target detection in complex visual environments.