Observing ageism implicitly using the numerical parity judgment task

Area of Science:

• Cognitive Psychology
• Social Psychology
• Neuroscience

Background:

• Objective magnitude representations can be influenced by subjective perceptions, especially when judging human attributes like age.
• Stereotypes about aging may impact how we perceive size and numerical values associated with different age groups.

Purpose of the Study:

• To investigate the interaction between objective age representation and subjective stereotypical perceptions of aging.
• To determine if implicit biases affect magnitude perception in relation to age and emotional valence.

Main Methods:

• A numeral classification task was employed, preceded by prime images of human figures.
• Participants were exposed to images of varying ages and emotional valences (positive/negative).

Main Results:

• A positive correlation was observed between perceived age and numerical size for younger individuals.
• Negative and positive valence primes were linked to small and large numerical values, respectively.
• A significant interaction revealed that older adults were associated with smaller numerical values, influenced by age and valence.

Conclusions:

• Magnitude perception is susceptible to implicit subjective biases.
• Stereotypical judgments about aging can dominate objective magnitude representation, impacting numerical cognition.