Anodal transcranial direct current stimulation of right temporoparietal area inhibits self-recognition

Self–other discrimination is a crucial mechanism for social cognition. Neuroimaging and neurostimulation research has pointed to the involvement of the right temporoparietal region in a variety of self–other discrimination tasks. Although repetitive transcranial magnetic stimulation over the right temporoparietal area has been shown to disrupt self–other discrimination in face-recognition tasks, no research has investigated the effect of increasing the cortical excitability in this region on self–other face discrimination. Here we used transcranial direct current stimulation (tDCS) to investigate changes in self–other discrimination with a video-morphing task in which the participant’s face morphed into, or out of, a familiar other’s face. The task was performed before and after 20 min of tDCS targeting the right temporoparietal area (anodal, cathodal, or sham stimulation). Differences in task performance following stimulation were taken to indicate a change in self–other discrimination. Following anodal stimulation only, we observed a significant increase in the amount of self-face needed to distinguish between self and other. The findings are discussed in relation to the control of self and other representations and to domain-general theories of social cognition.     

A five-year study of older adults' health incongruence: consistency, functional changes and subsequent survival

In later life, optimistic health appraisals promote well-being and survival, whereas pessimistic appraisals can be harmful. This study contrasted subjective health (SH) appraisals with objective health (OH) to identify realists, whose ratings were congruent (SH?=?OH), distinguishing them from health pessimists (SH??OH) with incongruent ratings. Health congruence and functional well-being of 757 older adults were assessed via two interviews conducted 5 years apart. We examined consistency in health congruence, and among those with persistent OH, we examined 5-year functional well-being changes that corresponded with SH shifts and determined whether SH shifts predicted 30-month survival. Most realists remained realists; health optimists and pessimists tended to become realists. Increased health optimism corresponded with enhanced functioning; increased pessimism corresponded with decreased functioning. Among realists, increasingly positive SH predicted survival. Findings have implications for quality and length of life among older adults with chronic health conditions.     

Sleep spectral power correlates of prospective memory maintenance

Prospective memory involves setting an intention to act that is maintained over time and executed when appropriate. Slow wave sleep (SWS) has been implicated in maintaining prospective memories, although which SWS oscillations most benefit this memory type remains unclear. Here, we investigated SWS spectral power correlates of prospective memory. Healthy young adult participants completed three ongoing tasks in the morning or evening. They were then given the prospective memory instruction to remember to press “Q” when viewing the words “horse” or “table” when repeating the ongoing task after a 12-h delay including overnight, polysomnographically recorded sleep or continued daytime wakefulness. Spectral power analysis was performed on recorded sleep EEG. Two additional groups were tested in the morning or evening only, serving as time-of-day controls. Participants who slept demonstrated superior prospective memory compared with those who remained awake, an effect not attributable to time-of-day of testing. Contrary to prior work, prospective memory was negatively associated with SWS. Furthermore, significant increases in spectral power in the delta-theta frequency range (1.56 Hz–6.84 Hz) during SWS was observed in participants who failed to execute the prospective memory instructions. Although sleep benefits prospective memory maintenance, this benefit may be compromised if SWS is enriched with delta–theta activity.

Prospective memory refers to the maintenance, retrieval, and execution of a previously formed intention (Einstein and McDaniel 1990). Successful prospective memory is essential for a large number of tasks in daily life, such as remembering to attend a doctor''s appointment, to pick up a prescribed medication after that appointment, and to also pick up other needed items (e.g., groceries) while at the drugstore. The above described hypothetical sequence of events integrates previously studied prospective memory variants including time-based (i.e., maintaining a memory to complete an intention at a prespecified time; e.g., Esposito et al. 2015; Occhionero et al. 2017), activity-based (i.e., maintaining a memory to perform an intention before or after a particular activity; e.g., Occhionero et al. 2020), and cue-based (i.e., relying on external cues to prompt a maintained memory for a set intention; e.g., Scullin and McDaniel 2010; Leong et al. 2019b; Scullin et al. 2019).When it is required that memories be maintained across longer periods of time, prospective memory may become less reliable unless sleep occurs (Scullin and McDaniel 2010; Diekelmann et al. 2013a,b; Grundgeiger et al. 2014; Leong et al. 2019a,b; Scullin et al. 2019). Sleep appears to most strongly aid spontaneous retrieval of cue-based prospective memories (Leong et al. 2019a). Several reports have found that slow wave sleep (SWS) supports spontaneous retrieval of cue-based prospective memory intentions (e.g., Diekelmann et al. 2013a; Leong et al. 2019b), although at least one study found an association with rapid eye movement (REM) sleep instead (Scullin et al. 2019). Cue-based prospective memory is hypothesized to be a type of associative memory that binds prospective components (the prospective memory cue) and retrospective components (maintenance of the memory for the prospective memory intention when presented with the cue; Diekelmann et al. 2013b; Leong et al. 2019a).Rodent and human literature, implementing a variety of invasive and noninvasive brain imaging techniques, show that cortical slow oscillations (SOs; <1 Hz) and fast thalamocortical sleep spindles during SWS facilitate associative memory retention (Niknazar et al. 2015; Latchoumane et al. 2017; Helfrich et al. 2018; Mikutta et al. 2019; Muehlroth et al. 2019), whereas faster oscillations, such as those in the theta frequency band (∼4–7 Hz), may inhibit declarative associative memory (Marshall et al. 2011). We therefore hypothesize that prospective memory performance, like other studied associative memory variants, should benefit from oscillations during SWS (Klinzing et al. 2019). However, it remains unknown which SWS microarchitectural features may facilitate or inhibit prospective memory performance.Here, we aimed to first replicate prior findings that prospective memories are better maintained across a 12-h interval including sleep compared with an equivalent interval of wakefulness (e.g., Scullin and McDaniel 2010). We next explored whether sleep-associated memory maintenance might be linked to SWS microarchitectural features. To our knowledge, this is the first experiment to examine whether SWS oscillations differentiate successful from unsuccessful prospective memory performance. Given the role of hippocampal engagement in both associative memory binding (e.g., Yonelinas et al. 2019) and oscillatory coupling during SWS that supports associative memory (Niknazar et al. 2015; Latchoumane et al. 2017; Helfrich et al. 2018; Mikutta et al. 2019; Muehlroth et al. 2019), we hypothesized that prospective memory performance would be supported by SWS and specifically SOs and sleep spindle activity.     

Comparing the Psychometric Characteristics of Ratings of Face‐to‐Face and Videotaped Structured Interviews

Videotaped interviews are used for both research and for making selection decisions in organizations. However, little research has examined the extent to which the psychometric characteristics of ratings of videotaped interviews are comparable with those of ratings made on the basis of face‐to‐face (FTF) interviews. Within a simulated selection setting, we compared ratings of interviewers who conducted FTF structured interviews to ratings of interviewers who viewed videotapes of those interviews. Results revealed that FTF ratings were significantly higher than video ratings of the same interviewees. We also found that the two sets of interviewers rated the relative performance of interviewees differently. For example, the correlation between FTF and video ratings (r=.31) was significantly smaller than the correlation between ratings of interviewers who conducted FTF panel interviews with the same interviewees (r=.73). Overall results suggest that researchers and practitioners should be cautious about generalizing research findings and selection decisions made on the basis of videotaped interviews to FTF interviews.     

The impact of error training and individual differences on training outcomes: an attribute-treatment interaction perspective

The authors examined the effectiveness of error training for trainees with different levels of cognitive ability, openness to experience, or conscientiousness. Participants (N = 181) were randomly assigned to control, error-encouragement, or error-avoidance conditions and trained to perform a decision-making simulation. Declarative knowledge, task performance, and self-efficacy were measured posttraining. Findings suggest the effectiveness of error training is dependent on the cognitive ability or dispositional traits of trainees. High cognitive ability or more open individuals benefit more from error-encouragement training than low cognitive ability or less open individuals. Conscientiousness has a negative effect on self-efficacy when trainees are encouraged to make errors.     

Early abuse, psychiatric diagnoses and irritable bowel syndrome

In a population of 71 (57 female, 14 male) IBS patients seeking psychological treatment, we found expected levels of childhood sexual and physical abuse (57.7%) and expected levels of current Axis I psychiatric disorders (54.9%). Moreover, we found those who had been victims of early abuse had higher current Beck Depression Inventory scores. However, contrary to expectations, there were no significant associations between early abuse and current psychiatric disorder in this population, suggesting that those individuals with psychological distress are not exactly the same group with a history of abuse.     

Race-related stress,quality of life indicators,and life satisfaction among elderly African Americans

This article examined the relationships among race-related stress, quality of life indicators, and life satisfaction among elderly African Americans. A sample of 127 elderly African Americans, consisting of 87 women and 26 men (and 14 missing values), were administered the Index of Race-Related Stress, the Satisfaction With Life Scale, and the 36-item Short-Form Health Survey. Results indicated that elderly African American men and women differed significantly with regard to institutional and collective racism-related stress. In addition, the authors found that institutional racism-related stress was a significant predictor of psychological health in this sample of elderly African Americans.     

Coping with Unfavorable Attribute Values in Choice

This paper examines how decision makers cope when faced with trade-offs between a higher quality alternative and a lower price alternative in situations where both alternatives involve relatively unfavorable versus relatively favorable values for quality. We hypothesize that choices between alternatives defined by unfavorable quality values will generate negative emotion, resulting in emotion-focused coping behavior. Choosing the higher quality alternative (i.e., maximizing the quality attribute in choice) appears to function as a coping mechanism in these situations. These apparently coping-motivated choice effects are found even after methods are implemented to control for more cognitive factors associated with manipulations of quality-attribute value, such as the possibility that unfavorable attribute values are associated with increased attribute ranges and therefore increased relative importance for quality.     

Does class size in first grade relate to children's academic and social performance or observed classroom processes?

This study evaluated the extent to which first-grade class size predicted child outcomes and observed classroom processes for 651 children (in separate classrooms). Analyses examined observed child-adult ratios and teacher-reported class sizes. Smaller classrooms showed higher quality instructional and emotional support, although children were somewhat less likely to be engaged. Teachers in smaller classes rated typical children in those classes as more socially skilled and as showing less externalizing behavior and reported more closeness toward them. Children in smaller classes performed better on literacy skills. Larger classrooms showed more group activities directed by the teacher, teachers and children interacted more often, and children were more often engaged. Lower class sizes were not of more benefit (or harm) as a function of the child's family income. First-grade class size in the range typical of present-day classrooms in the United States predicts classroom social and instructional processes as well as relative changes in social and literacy outcomes from kindergarten to first grade.     

Assessing the effectiveness of warnings and the phenomenological characteristics of false memories

The phenomenology of false memories was investigated in three experiments in which participants heard two experimenters read lists of items that were related to critical nonpresented items. In Experiments 1, following a recognition memory test, participants rated the phenomenological characteristics of their memories immediately and after a 48-hour delay. False recognition was prevalent and on several dimensions participants rated their true memories as more vivid than their false memories. In Experiments 2 and 3, following the study phase, participants were warned about the phenomenological differences between true and false memories and were instructed to use this information to avoid reporting nonpresented items. This type of warning was ineffective at reducing false recall (Experiment 2) and false recognition (Experiment 3) relative to unwarned participants. Importantly, the inability of explicit warnings to impact illusory recollections demonstrates that the false memories cannot be attributed simply to a criterion shift.