Target value and prevalence influence visual foraging in younger and older age

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Behavior

Background:

• Visual search performance is influenced by target prevalence and reward value.
• Individual and age-related differences in attentional selection based on reward value are significant.
• Understanding these factors is crucial for cognitive aging research.

Purpose of the Study:

• To investigate individual and age differences in visual search efficiency.
• To examine how target prevalence and reward value affect attentional selection across age groups.
• To explore the relationship between individual differences in search behavior and personality traits.

Main Methods:

• A hybrid foraging task was employed, manipulating target prevalence and value.
• Optimal foraging theory measures were used to assess search efficiency.
• Participants included younger and older adults, with analysis of individual selection choices.

Main Results:

• Overall foraging efficiency was higher in younger observers compared to older observers.
• Both age groups showed similar influences of prevalence and value on target selection.
• Individual differences in target selection were observed, particularly when value and prevalence were inversely related, correlating with personality in younger adults.

Conclusions:

• Core cognitive mechanisms underlying visual search influenced by prevalence and value appear preserved in older age.
• Individual variability in target selection strategies exists and may be linked to reward-seeking behavior.
• Further research into personality's role in optimizing foraging decisions is warranted.