Age Differences in Motivated Cognition: A Meta-Analysis ( week 3 Reading)

The goal of this preregistered study was to combine results from past research to better understand how motivation affects thinking at different ages, focusing specifically on self-control and memory for personal experiences.

Results:
Overall, age and motivation did not interact in a strong or consistent way for either cognitive control or memory. However, the results varied a lot across studies, suggesting that other factors might explain these differences. One important factor was the type of reward used. For memory, older adults responded more strongly to social or emotional rewards, while younger adults responded more strongly to money. Reward type did not make a meaningful difference for cognitive control.

Discussion:
The results were compared to existing theories about brain aging (especially those involving dopamine) and theories about how motivation changes across the lifespan. No single theory fully explained the findings, which suggests that future research needs to combine brain-based, cognitive, and lifespan motivation perspectives.

Methods:
Researchers searched for studies published before July 2022 and found 27 studies on cognitive control and 73 studies on memory. These studies included both healthy younger and older adults and compared performance under high versus low motivation. Each study measured either cognitive control or memory. The researchers combined the results across studies to see how age and motivation worked together, and they also looked at other factors that might explain differences between studies.