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Related Experiment Video

Updated: Jun 18, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

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Published on: June 3, 2013

Categorization and affect: evidence for intra-hemispheric interactions.

Dan Ramon¹, Yonit Doron, Miriam Faust

¹Department of Psychology, Bar-Ilan University, Ramat-Gan 52900, Israel.

Brain and Cognition

|November 23, 2006

Summary

This summary is machine-generated.

Emotional reactivity and categorization interact based on the brain hemisphere. Affective states influence categorization, but only within the hemisphere linked to that specific emotion and cognitive strategy.

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Area of Science:

Neuroscience
Cognitive Psychology
Affective Science

Background:

Emotional reactivity and categorization are studied separately concerning hemispheric asymmetry.
Behavioral data suggest a link between affective and categorization processes, yet integration is lacking.
Neuropsychological research has not fully explored the interaction between affect and categorization.

Purpose of the Study:

To investigate a potential laterally mediated interaction between emotional reactivity and categorization.
To determine if the relationship between affect and categorization is hemisphere-dependent.
To explore the influence of specific affective states on cognitive categorization strategies.

Main Methods:

Utilized a split visual fields categorization task.
Incorporated affect-inducing procedures to manipulate emotional states.
Examined categorization performance in relation to induced affect and targeted hemisphere.

Main Results:

State affect significantly altered categorization performance.
These affect-related changes were observed only in the hemisphere associated with the specific affective state.
The results indicated a dependency on the nature of the affect and the targeted hemisphere.

Conclusions:

Findings support a laterally mediated interaction between emotional reactivity and categorization.
Evidence suggests a hemispheric arousal effect underlies the relationship between affect and categorization.
The study highlights the role of hemispheric specialization in integrating emotional and cognitive processes.