Related Experiment Video
Updated: Aug 9, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
Published on: June 3, 2013
The affective and memorial components of distinctiveness-based illusory correlations
C Johnson1, B Mullen, D Carlson
1Department of Psychology, Hofstra University, Hempstead, NY 11550, USA. psycaj@hofstra.edu
This study reveals illusory correlation (IC) is driven by both cognitive memorial and affective components. Affective intensity impacts IC more on evaluative measures, while memorial aspects influence assignment judgments.
Area of Science:
- Cognitive Psychology
- Social Psychology
Background:
- Illusory correlation (IC) describes the tendency to overestimate the co-occurrence of distinctive events.
- A proposed model suggests IC has distinct cognitive memorial and affective components.
Purpose of the Study:
- To empirically test a dual-component model of illusory correlation.
- To differentiate the roles of affective and memorial processes in IC formation.
Main Methods:
- Experiment 1 (N=118) manipulated emotional intensity (affective dimension) while keeping valence constant.
- Experiment 2 (N=52) manipulated valence while keeping affective qualities matched.
- Measures included estimation, general evaluation, and assignment to assess IC magnitude.
Main Results:
- Higher emotional intensity amplified the IC effect on evaluative measures (Experiment 1).
- Varied valence significantly affected IC on assignment measures, linked to the memorial component (Experiment 2).
Conclusions:
- Findings support a distinct role for affective and cognitive memorial processes in illusory correlation.
- The study elucidates the nuanced mechanisms underlying the IC phenomenon.
Related Concept Videos
Cause and Effect
The Influence of Affect on Cognition
Theory of Attribution II: Kelley's Covariation Theory
Role of Affect in Interpersonal Attraction
Factors Influencing Attraction III: Similarity
Causes of Similarity-Dissimilarity Effect

