Visual rightward spatial bias varies as a function of age.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Development

Background:

• Spatial attention biases are crucial for information processing.
• Previous research indicates rightward biases in auditory attention tasks.
• Understanding age-related shifts in spatial attention is vital.

Purpose of the Study:

• To investigate age-related changes in visual spatial biases across childhood, young adulthood, and old age.
• To compare spatial biases in linguistic and non-linguistic attention tasks under unilateral and bilateral stimulus conditions.
• To explore the relationship between spatial biases, hemispace preference, and executive functions.

Main Methods:

• Participants: Children, young adults, and older adults.
• Tasks: Fast-paced linguistic and non-linguistic visual attention tasks.
• Conditions: Unilateral and bilateral stimulus presentation.

Main Results:

• Only rightward spatial biases were observed across all age groups and tasks.
• Rightward spatial biases were more prevalent in childhood and old age compared to young adulthood.
• The observed visual biases mirrored previously found auditory spatial biases.

Conclusions:

• A multimodal rightward spatial bias exists under high attentional load.
• This bias is linked to a right hemispace preference.
• Age-dependent changes in executive functions likely modulate these spatial biases.