Coincidence-anticipation accuracy across the life span

Area of Science:

• Human aging research
• Motor control and performance
• Developmental psychology

Background:

• Response speed and coincidence-anticipation accuracy show age-related trends.
• Previous research indicates performance plateaus earlier for coincidence-anticipation than response speed.
• Older adults' performance on coincidence-anticipation tasks remains understudied.

Purpose of the Study:

• To investigate age-related changes in coincidence-anticipation accuracy.
• To compare performance across four distinct age groups: children, young adults, and older adults.
• To examine the influence of stimulus speed on task performance across the lifespan.

Main Methods:

• Participants completed a coincidence-anticipation task with varying stimulus speeds (2-5 MPH) and a maximal response-time task.
• Four age groups were tested: 7-9 years, 11-13 years, 18-32 years, and 60-75 years.
• A follow-up experiment assessed older adults (64-86 years) on accuracy and variability.

Main Results:

• Confirmed age trends in response speed.
• Youngest children (7-9 years) performed significantly worse in coincidence-anticipation accuracy, especially at extreme stimulus speeds.
• Older adults exhibited less directional bias but were less accurate and more variable than young adults.

Conclusions:

• Coincidence-anticipation accuracy, unlike response speed, shows significant decline in early childhood and again in older adulthood.
• Performance variability increases at extreme stimulus speeds for younger children.
• Older adults demonstrate age-related decrements in coincidence-anticipation accuracy and increased variability.