The SocialVidStim: a video database of positive and negative social evaluation stimuli for use in social cognitive neuroscience paradigms.

This paper describes the SocialVidStim-a database of video stimuli available to the scientific community depicting positive and negative social evaluative and neutral statements. The SocialVidStim comprises 53 diverse individuals reflecting the demographic makeup of the USA, ranging from 9 to 41 years old, saying 20-60 positive and 20-60 negative social evaluative statements (e.g. 'You are a very trustworthy/annoying person'), and 20-60 neutral statements (e.g. 'The sky is blue'), totaling 5793 videos post-production. The SocialVidStim are designed for use in behavioral and functional magetic resonance imaging paradigms, across developmental stages, in diverse populations. This study describes stimuli development and reports initial validity and reliability data on a subset videos (N = 1890) depicting individuals aged 18-41 years. Raters perceive videos as expected: positive videos elicit positively valenced ratings, negative videos elicit negatively valenced ratings and neutral videos are rated as neutral. Test-retest reliability data demonstrate intraclass correlations in the good-to-excellent range for negative and positive videos and the moderate range for neutral videos. We also report small effects on valence and arousal that should be considered during stimuli selection, including match between rater and actor sex and actor believability. The SocialVidStim is a resource for researchers and we offer suggestions for using the SocialVidStim in future research.

A narrative systematic review of changes in mental health symptoms from before to during the COVID-19 pandemic.

The onset of the COVID-19 pandemic raised concerns regarding population-wide impacts on mental health. Existing work on the psychological impacts of disaster has identified the potential for multiple response trajectories, with resilience as likely as the development of chronic psychopathology. Early reviews of mental health during the pandemic suggested elevated prevalence rates of multiple forms of psychopathology, but were limited by largely cross-sectional approaches. We conducted a systematic review of studies that prospectively assessed pre- to peri-pandemic changes in symptoms of psychopathology to investigate potential mental health changes associated with the onset of the pandemic (PROSPERO #CRD42021255042). A total of 97 studies were included, covering symptom clusters including obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), fear, anxiety, depression, and general distress. Changes in psychopathology symptoms varied by symptom dimension and sample characteristics. OCD, anxiety, depression, and general distress symptoms tended to increase from pre- to peri-pandemic. An increase in fear was limited to medically vulnerable participants, and findings for PTSD were mixed. Pre-existing mental health diagnoses unexpectedly were not associated with symptom exacerbation, except in the case of OCD. Young people generally showed the most marked symptom increases, although this pattern was reversed in some samples. Women in middle adulthood in particular demonstrated a considerable increase in anxiety and depression. We conclude that mental health responding during the pandemic varied as a function of both symptom cluster and sample characteristics. Variability in responding should therefore be a key consideration guiding future research and intervention.

How "none of the above" (NOTA) affects the accessibility of tested and related information in multiple-choice questions.

Answering multiple-choice questions increases accessibility of the tested information and can improve accessibility of related information. However, multiple-choice questions with "none of the above" (NOTA) as a choice hurts accessibility of the previously tested information when NOTA serves as the correct answer (NOTAcorrect). Would prompting participants to recall an answer when choosing NOTA, and then providing feedback, reduce the costs of NOTAcorrect items? In the present experiments, participants answered general knowledge questions in multiple-choice (with a NOTA alternative) or cued-recall formats; half of the participants, when choosing NOTA, were prompted to provide an answer. Half of the participants received feedback. On a final cued-recall test assessing performance for previously tested and nontested related information, we found that NOTAcorrect questions hurt performance for previously tested items as compared to the cued-recall condition; but they facilitated recall of related information. Feedback improved performance for all previously tested information, but performance was still worse for NOTAcorrect questions than for cued-recall questions. The addition of a cued-recall component on NOTA questions did not influence accessibility. The results have implications for using NOTA in practice tests and help explain why using NOTAcorrect items hurt learning, even with feedback, supporting a proactive interference account.