Related Experiment Video
Updated: Jun 18, 2026

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
Published on: February 14, 2014
Aging and subjective cognitive difficulties during COVID-19: stress and positive experiences
Dakota D Witzel1, Suzanne C Segerstrom2,3, Maria L Kurth1,3
1Center for Healthy Aging, The Pennsylvania State University, State College, PA, USA.
Objective(S):
Stressful and positive experiences may inform subjective perceptions of cognition; however, much of the literature focuses on stressful experiences. The COVID-19 pandemic provided an unprecedented opportunity to examine individual differences related to both minor (weekly) and larger (life) stressful and positive experiences, and subjective cognitive functioning during a worldwide, chronic stressor. The current studies examined these associations in two samples of older adults which used two different time scales - weeks and months. We also examined how age moderated associations.
Methods:
In Study 1, 245 older adults (Mage = 71.1) completed measures on stress, positive experiences, and subjective cognitive difficulties (SCDs) across eight weeks during the pandemic. In Study 2, 116 older adults (Mage = 76.16) were assessed every six months for up to 2½ years during the pandemic.
Results:
In both studies, higher typical stress (weekly stress intensity and life events) was related to more subjective cognitive difficulties. In Study 1 but not Study 2, older age was related to lower levels of subjective cognitive difficulties, especially during weeks with high stress and positive experiences (within-persons).
Conclusion:
The current study provides information as to whose subjective cognition may be most impacted by stress and positive experiences within a major non-normative event.
Related Concept Videos
Cognitive Development During Adulthood
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Introduction to Stress and Lifestyle
Psychological Responses to Stress
Stress and Mental Health
Individuals with depression often experience challenges in both their personal and professional...
Negative and Cognitive Symptoms of Schizophrenia
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...

