Dimensional and Discrete Emotional Reactivity in Alzheimer's Disease: Film Clips as a Research Tool in Dementia.

BACKGROUND: No studies have been conducted to date on the dimensional and discrete classification of emotions to study the emotional reactivity of older adults with Alzheimer's disease (AD). Additionally, the presentation of film clips with affective content is currently one of the most effective and widely used Mood Induction Procedures (MIPS). However, it has been scarcely used in AD patients. OBJECTIVE: Based on the dimensional and discrete models of emotion, this study examines the emotional reactivity of older adults with AD, using a popular set of film clips to induce emotions. METHODS: We compared the responses of older adults aged over 65-years with mild to moderate AD (n = 15) and a healthy comparison group (n = 17) to six target emotions: disgust, fear, anger, sadness, amusement, and tenderness. RESULTS: The results showed significant differences in the reactivity of fear, anger, and sadness between AD patients and healthy comparison group. However, the responses of the two groups to positive film clips were similar. Only in the amusement clip did the AD participants show a higher intensity response. CONCLUSION: These findings suggest that the characteristic loss of cognitive abilities in AD is related to a reduction in the ability to react to emotional stimuli, especially negative ones. However, these abilities seem to be preserved when it comes to positive emotions. Future research is necessary to investigate whether the positivity effect is present in AD patients.

Emotion recognition changes in a confinement situation due to COVID-19.

The confinement situation experienced as a result of COVID-19 will have consequences at a psychological level. These consequences can affect emotion recognition because, due to isolation, interactions and social contacts have been drastically reduced. The aim of this study was to find out if there were differences in facial emotion recognition in two groups of young adults, one confined during COVID-19 and the other unconfined. One hundred and sixty-four young adults were tested twice, the first time unconfined, to obtain the baseline, then the sample was divided into two subgroups so that 84 were evaluated in a confined situation and 80 in an unconfined situation. . Ekman 60 Faces test, which includes the recognition of the six basic emotions (anger, disgust, fear, happiness, sadness, and surprise) was applied. The main results obtained showed that during the confinement situation there was a significant decrease in the recognition of happiness, and a significant increase in the recognition of sadness and depressed mood. Confinement significantly alters and reduces our social interactions, which can affect our mood as well as our emotional facial recognition. For this reason, health services need to engage in early detection of the psychological effects this situation will have on the population.