fMRI environment can impair memory performance in young and elderly adults

Area of Science:

• Cognitive Neuroscience
• Neuroimaging
• Psychology

Background:

• The functional magnetic resonance imaging (fMRI) environment presents unique sensory and attentional demands.
• Understanding how this environment affects cognitive functions like memory is crucial for interpreting fMRI study results.
• Previous research suggests potential impacts of environmental factors on cognitive performance.

Purpose of the Study:

• To investigate the influence of the fMRI scanning environment on working memory and long-term memory performance.
• To compare cognitive task performance within an fMRI scanner versus a standard laboratory setting.
• To examine age-related differences in susceptibility to environmental effects on memory.

Main Methods:

• Participants (young and old adults) completed working memory and long-term memory tasks in both an fMRI environment and a laboratory setting.
• Performance metrics were compared between the two environments.
• Analysis focused on identifying performance decrements and age-specific effects.

Main Results:

• Both young and old adults exhibited performance decrements on a long-term memory task in the fMRI environment compared to the laboratory.
• No significant performance differences were observed for a passive working memory task between environments.
• Older adults showed disproportionately greater impairment on the long-term memory task in the fMRI environment.

Conclusions:

• The fMRI scanning environment can negatively impact memory performance, particularly for more demanding tasks like long-term memory encoding.
• Divided attention costs associated with the fMRI environment appear to affect memory performance, especially for difficult tasks.
• Older adults may be more vulnerable to the cognitive challenges posed by the fMRI environment, particularly for long-term memory, suggesting age-specific considerations are needed.