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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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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 interpreted as...
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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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Related Experiment Video

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Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion
15:57

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Published on: May 4, 2011

Affective perception and imagery: A NIRS study.

Angelika Köchel1, Michael M Plichta, Axel Schäfer

  • 1Department of Clinical and Health Psychology, University of Graz, Austria. angelika.koechel@uni-graz.at

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|March 23, 2011
PubMed
Summary
This summary is machine-generated.

Affective imagery, unlike picture perception, engages parietal areas. Emotional content and imagery ability influence occipital cortex activation, crucial for visual imagery quality.

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Last Updated: Jun 3, 2026

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Central and Divided Visual Field Presentation of Emotional Images to Measure Hemispheric Differences in Motivated Attention

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Cortical attention networks in affective picture processing are well-studied.
  • Limited research exists on affective imagery and its neural correlates.
  • The modulation of visual cortex activation by emotional content during imagery is unclear.

Purpose of the Study:

  • To investigate neural differences between affective picture perception and imagery.
  • To examine how emotional content influences visual cortex activation during imagery.
  • To explore the role of individual differences in emotional reactivity and imagery ability.

Main Methods:

  • Near-infrared spectroscopy (NIRS) was used to record brain activity.
  • Thirty-five healthy adults viewed affective (disgust, happy) and neutral pictures.
  • Participants then visualized the pictures during NIRS recording.

Main Results:

  • Picture perception increased oxygenated hemoglobin in occipital regions; imagery increased it in parietal areas.
  • Emotional content modulated left occipital cortex activation during both perception and imagery, with affective pictures showing greater activation than neutral ones.
  • Self-rated imagery ability positively correlated with occipital activation during affective imagery.

Conclusions:

  • Parietal and occipital areas show differential involvement in affective perception and imagery.
  • Occipital activation is critical for the quality of visual imagery.
  • Individual differences in emotional traits did not significantly correlate with NIRS-detected oxygenation changes.