Crossmodal response precueing: age-related differences in action preparation.

Area of Science:

• Cognitive Neuroscience
• Human Factors
• Gerontology

Background:

• Action preparation is crucial for efficient task performance.
• Crossmodal precueing paradigms investigate how sensory cues influence motor responses.
• Age-related differences in cognitive processing, particularly in action preparation, are significant.

Purpose of the Study:

• To investigate the impact of crossmodal response precueing on action preparation in young and older adults.
• To compare the effectiveness of response-modality versus spatial precues.
• To examine how preparation time influences performance across age groups.

Main Methods:

• A crossmodal visual-auditory precueing paradigm was employed with young (18-30 years) and older (60-77 years) adults.
• Participants performed a four-choice task with informative (response-modality or spatial) and uninformative precues.
• The cue-target interval (CTI) was manipulated to assess the effect of preparation time.

Main Results:

• Response-modality precues yielded better performance than spatial or uninformative precues.
• Older adults showed a greater benefit from extended preparation time with response-modality precues compared to young adults.
• Spatial precues resulted in a speed-accuracy tradeoff for older adults, with faster responses but increased errors, especially at longer CTIs.

Conclusions:

• Older adults struggle to maintain abstract spatial response codes without effector modality specification, particularly with prolonged preparation.
• Both age groups are efficient in complex multimodal settings when cued for a specific response modality.
• Findings underscore the importance of effector-specific cues for optimizing action preparation in older adults.