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Related Concept Videos

Factors Affecting Perception01:25

Factors Affecting Perception

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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...
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Perception01:28

Perception

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Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
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Related Experiment Video

Updated: Oct 13, 2025

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills
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Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

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Time-based task expectancy: perceptual task indicator expectancy or expectancy of post-perceptual task components?

Irina Monno1, Stefanie Aufschnaiter2, Sonja Ehret2

  • 1Cognition, Action and Sustainability Unit, Department of Psychology, Albert-Ludwigs-Universität Freiburg, Engelbergerstrasse 41, 79085, Freiburg, Germany. irina.monno@psychologie.uni-freiburg.de.

Psychological Research
|November 16, 2021
PubMed
Summary
This summary is machine-generated.

Temporal predictability aids cognitive control in multitasking. This study found that time-based expectancy in task switching relies on anticipating visual cues, not just task order, enhancing performance.

Keywords:
ForeperiodTask switchingTemporal preparationTime-based expectancy

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Temporal predictability is vital for cognitive control during multitasking.
  • Task switching performance improves with predictable task intervals.
  • The precise cognitive mechanisms of time-based expectancy in task switching remain unclear.

Purpose of the Study:

  • To determine if time-based expectancy in task switching is driven by post-perceptual task component anticipation or perceptual visual processing facilitation.
  • To investigate the role of visual cue processing in time-based task expectancy.

Main Methods:

  • Participants performed numeric judgment tasks (parity vs. magnitude) cued by different colors.
  • Tasks were preceded by variable intervals (500 ms or 1500 ms).
  • Color-task pairings were manipulated for predictability across intervals.

Main Results:

  • Faster response times were observed when both color and task were predictable by time (expected color).
  • No performance improvement occurred when only the task was predictable (neutral color).
  • Results indicate a significant effect of perceptual cue expectancy.

Conclusions:

  • Perceptual time-based task indicator expectancy is the primary cognitive mechanism underlying time-based expectancy in task switching.
  • Facilitation of perceptual visual processing of task indicators is key.
  • This finding refines our understanding of anticipatory cognitive control.