A Discrete Emotions Perspective to Negative Autobiographical Recall among Younger and Older Adults

The effect of aging and emotions on time processing

BACKGROUND

Time perception is an automatic process that can be influenced by intrinsic and extrinsic factors.

AIMS

This study aimed to investigate the effect of age and emotions on the ability to keep track of short suprasecond intervals.

METHODS

Younger adults (N = 108, age range: 18-35) and older adults (N = 51, age range: 65-87) were asked to reproduce, bisect, or double the duration of facial stimuli randomly presented for 1500, 3000, and 4500 ms. The experiment included facial stimuli with positive, negative, or neutral expressions.

RESULTS

The participants across age correctly reproduced intervals but overestimated and underestimated them when asked to bisect and double the intervals, respectively. Overall, when faces were presented with a positive or negative expression, an overestimation of time intervals emerged compared to faces with neutral expressions. Emotions had a greater effect on older adults, who showed a greater overestimation of positive facial expressions and an underestimation of sad, but not angry, facial expressions.

DISCUSSION

The results provide evidence that time perception is influenced by age and emotions, with older adults showing a greater effect of emotions on time processing.

CONCLUSION

The study suggests an interaction among time processing, age, and emotions, highlighting an automatic relationship among these domains, often considered independent.

Age Differences in Reappraisal of Negative Autobiographical Memories

Background: Past studies have been equivocal regarding age differences in reappraisal efficacy. Moreover, the use of laboratory-generated stimuli (e.g., images, film clips) may overestimate age differences. Instead, the use of self-relevant stimuli (e.g., autobiographical memory) may better represent the day-to-day implementation of reappraisal. Method: Younger and older adults generated 50 negative memories and provided negativity, positivity, and vividness ratings. One to two weeks later, participants underwent a reappraisal task during which physiological data were collected. Participants implemented one of the three instructions for 30 seconds: remember naturally, increase negative reactions, or decrease negative reactions via a "positivizing" tactic. Results: Prior to the regulation session, older adults rated all memories more positively than younger adults. No age differences in negativity or vividness ratings emerged. After regulation, older adults rated memories more positively, negatively, and vividly than younger adults. Physiological data suggest that reappraisal demands may have been more cognitively demanding for older adults. However, older adults reported higher negativity and positivity than younger adults. Conclusion: This challenges the existing theory regarding age and emotion regulation. We contend that reappraisal was achieved by younger and older adults; however, achievement may have emerged in slightly different ways.

The Influence of Discrete Negative and Positive Stimuli on Recognition Memory of Younger vs. Older Adults

Background: The effects of emotional stimuli on memory in older adults are often addressed in terms of socio-emotional selectivity theory and the valence dimension. Older adults usually remember positive stimuli better than negative stimuli. However, studies examining the effects of discrete emotions on the elderly are still limited. The present study examined the effects of negative and positive discrete emotions (fear, disgust, and happiness) on recognition memory of older and younger adults. Method: In the encoding phase, participants studied happiness-, disgust-, fear-, and neutral- related photos while doing a line discrimination task that assessed their attention. After 45 minutes, they completed an old/new recognition memory test on a confidence rating scale and also rated self-relevance of photos. Results: Younger participants showed a more liberal response bias for disgust- and fear-related stimuli, and were also more accurate in recognizing disgust-related photos compared to others. Older adults showed a more liberal bias only for disgust-related stimuli, however, their recognition accuracy did not differ across emotion categories. Conclusion: These results suggested that the effect of disgust-related stimuli on recognition memory may decrease with age and emotion effects cannot solely be accounted for by the valence/arousal dimensions.