The influence of contour fragmentation on recognition memory: an event-related potential study

The present study was carried out to examine how the event-related potentials to fragmentation predict recognition success. Stimuli were abstract meaningless figures that were either complete or fragmented to various extents but still recoverable. Stimuli were first encoded as part of a symmetry discrimination task. In a subsequent recognition phase, encoded stimuli were presented complete along with never presented stimuli and participants performed an old/new discrimination task. Fragmentation stimuli elicited more negative ERPs than complete figures over the frontal, central and parietal areas between 180 and 260 ms, and over the occipito-temporal areas between 220 and 340 ms. Only this latter effect was modulated as a function of whether stimuli were recognized or not during the recognition phase of the memory test. More specifically, the effect occurred for stimuli that were later forgotten and was absent for stimuli that were later recognized. This ERP to fragmentation, the occipito-temporal N(frag), possibly reflects the brain response to encoding difficulty, and is thus predictive of recognition performance.     

Missed by an inch or a mile? Predicting the size of intention-behaviour gap from measures of executive control

Failing to achieve healthy intentions can have a direct impact on subsequent health. The extent of this impact is partially determined by the size of the discrepancy between intentions and behaviour, that is, on whether an unachieved behavioural target is missed by an inch or a mile. Over two studies, measures of 'executive control' ability were used to predict the size of the intention-behaviour gap for two dietary behaviours - eating fruits and vegetables and snacking. In Study 1, participants (n=50) reported intended dietary intake, completed objective and self-report measures of executive control ability and recorded actual dietary intake over 3 days with computerised diaries. Using multiple regression, general executive control ability was found to account for 16-23% of the variance in the size of intention-behaviour gap for both the dietary behaviours. In Study 2 (n=52), deviation from intentions about snacking was significantly related to individual differences in prepotent response inhibition. Overall, individuals with weak executive control ate less fruits and vegetables and more snacks than intended. Intention-behaviour 'failures' are not homogenous, but instead vary predictably with the availability of executive control resources. This suggests that individuals with large intention-behaviour shortfalls may benefit from interventions designed to reduce the demands on executive control.     

The evolution of alexia in two cases of posterior cortical atrophy

Posterior cortical atrophy (PCA) is an uncommon presentation of Alzheimer's disease (AD), characterised by prevalent anatomo-functional involvement of posterior cortical areas. Accordingly, the main clinical features at onset are disorders of high-order visual processing, such as alexia and impairments of visuo-spatial and visuo-constructional abilities. The clinical features in the early stages of disease are variable, and they have been suggested to stem from prevalent ventral or dorsal brain pathology, and/or asymmetric hemispheric involvement. With disease progression, these differences tend to blur with the increasing severity of neuropsychological dysfunction. We report two PCA patients showing different patterns of reading impairment (respectively, letter-by-letter reading and neglect dyslexia). A follow-up study suggested that the qualitative features of alexia remain distinctive with disease evolution. In addition, single photon emission tomography (SPECT) studies revealed different patterns of hypoperfusion, consistent with the alexia types. A careful reading assessment can provide important insights to the pattern of progression of the disease in patients with PCA up to the late stages of the pathology.     

Ignored no more: Within‐Person variability enables better understanding of training transfer

The empirical findings from training transfer research rest on a rather static view of the transfer phenomenon, ignoring potential within‐person change in transfer over time. This study investigates within‐person variability in mastery goal orientation together with variability over time in the application of newly acquired knowledge and skills to the job context. Data from longitudinal surveys of trainees voluntarily attending statistical workshops revealed that trainees varied significantly in 2 characteristics of transfer trajectory: (a) initial attempts to transfer and (b) subsequent rate of change in transfer. Two affective learning outcomes showed differential relationships with transfer trajectories: Whereas posttraining self‐efficacy predicted initial attempt of transfer, motivation to transfer assessed at the end of training predicted subsequent rate of change in transfer. Furthermore, level and variability of trainees’ mastery orientation interacted to influence posttraining self‐efficacy and motivation to transfer, and subsequently transfer trajectories. Specifically, a trainee's mastery orientation level had stronger prediction of these outcomes when his/her mastery orientation distribution was less variable across situations. These findings highlight the importance of attending to within‐person variability in the study of training transfer by (a) considering training transfer as trajectories over time and (b) understanding trainee traits as frequency distributions.     

Anxiety,Sophistication, and Resistance to Persuasion: Evidence from a Quasi‐Experimental Survey on Global Climate Change

Our contribution deals with the emotional and cognitive foundations of resistance to persuasive information. We rely on an original quasi‐experimental protocol that simulates the flow of information and the respondents' reactions to persuasive arguments on global climate change. Respondents in a representative sample (N = 604) were asked if they supported reduction of economic activity to reduce climate warming and were then provided, based on their support or disapproval for this first argument, with counterattitudinal arguments to test their resistance to persuasion. This article highlights that sophistication strengthens resistance to persuasion, whereas anxiety has a double effect: directly, it decreases resistance; indirectly, it interacts with political sophistication and makes sophisticates less likely to resist persuasion when facing arguments inconsistent with their previous beliefs. Nonanxious citizens, in turn, are more likely to resist persuasion when their political sophistication increases. We also provide evidence that the joint effect of anxiety and sophistication is moderated by the ideological identification of respondents.     

The two sides of adversity: the effect of distant versus recent adversity on updating emotional content in working memory

Previous research suggests that adversity can have both adaptive and maladaptive effects, yet the emotional and working memory processes that contribute to more or less adaptive outcomes are unclear. The present study sought to investigate how updating emotional content differs in adolescents who have experienced past, recent, or no adversity. Participants who had experienced distant adversity (N?=?53), no adversity (N?=?58), or recent adversity only (N?=?20) performed an emotion n-back task with emotional facial expressions. Results revealed that the distant adversity group exhibited significantly faster reaction times (RTs) than the no adversity and recent adversity only groups. In contrast, the recent adversity only group exhibited significantly slower RTs and more errors than the distant adversity and no adversity groups. These results suggest an emotion and executive control pathway by which both the benefits and negative effects of adversity may be conferred. Results also highlight the importance of time in assessing the impact of adversity.     

Flow at Work and Basic Psychological Needs: Effects on Well‐Being

Recent conceptual work draws meaningful distinctions between experiential and declarative well‐being (Shmotkin, 2005 ), but little has been done to apply such distinctions in organisational psychology. We use this framework to integrate self‐determination theory (Deci & Ryan, 1985 ) and flow theory (Csikszentmihalyi, 1975 ), leading to hypotheses proposing that flow experiences at work (experiential well‐being) lead to declarative well‐being outcomes through their influence on the satisfaction of basic psychological needs for competence and autonomy. Findings from a two‐week experience sampling study of full‐time employees offer support for our hypotheses. This study also shows support for the moderating effect of individual differences in personality on the relationships among flow experiences, need fulfillment, and declarative well‐being.     

When under threat,we all look the same: Distinctiveness threat induces ingroup homogeneity in face memory

The current research investigated the well-established outgroup homogeneity effect in face memory (worse recognition for outgroup faces than ingroup faces). Because past research has shown that group distinctiveness threat can enhance ingroup homogeneity, of interest in the current research was whether distinctiveness threat affects face recognition. Across two studies, we found that threatening White American participants’ ethnic distinctiveness led to a reduction in same-race face recognition. In other words, distinctiveness threat created ingroup homogeneity in face memory. In both studies, distinctiveness threat led Whites’ same-race recognition to drop to cross-race levels. Implications were discussed in terms of how the structure of intergroup relations may drive intergroup differences in face memory.