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Can genes modulate anchoring effect?

Jianmin Zeng1,2,3, Manru Liu1,2,3, Xingrong Hou1,2,3

  • 1Sino-Britain Centre for Cognition and Ageing Research, Faculty of Psychology, Southwest University, China.

International Journal of Psychology : Journal International De Psychologie
|April 23, 2020
PubMed
Summary
This summary is machine-generated.

The anchoring effect, a decision bias, is influenced by genetics. Individuals with the AA genotype of rs806379 exhibit a stronger anchoring effect, suggesting a genetic basis for this cognitive bias.

Keywords:
Anchoring effectGenotypers806379

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Area of Science:

  • Cognitive Psychology
  • Behavioral Genetics
  • Neuroscience

Background:

  • The anchoring effect is a cognitive bias where an initial number influences subsequent estimations.
  • This bias is linked to impulsivity, which has a genetic component.
  • Previous research associates high impulsivity with the AA genotype of rs806379.

Purpose of the Study:

  • To investigate the genetic influence of rs806379 polymorphism on the anchoring effect.
  • To explore the relationship between impulsivity, genotype, and decision-making biases.

Main Methods:

  • Participants performed an experimental task designed to measure the anchoring effect.
  • Saliva samples were collected for genotyping of the rs806379 polymorphism.
  • Genotype data (AA, AG, GG) were correlated with the magnitude of the anchoring effect.

Main Results:

  • Subjects with the AA genotype of rs806379 demonstrated a significantly stronger anchoring effect compared to other genotypes.
  • This finding supports the hypothesis that rs806379 influences susceptibility to the anchoring bias.
  • The study provides the first genetic perspective on the anchoring effect.

Conclusions:

  • Genetic factors, specifically the rs806379 polymorphism, play a role in the anchoring effect.
  • Nature, through genetic predispositions, influences cognitive biases.
  • This research opens avenues for understanding the biological underpinnings of decision-making.