Lydia E. Hayward

Activation patterns during action observation are modulated by context in mirror system areas

The role of the mirror system in action understanding has been widely debated. Some authors have suggested that the mirror system plays an important role in action understanding (Rizzolatti and Sinigaglia, 2010), whereas others have claimed that direct evidence to support this view is lacking (Hickok, 2009). If mirror neurons have an active role in action understanding rather than passive visuomotor transformation during action observation, they should respond differently to the observation of actions depending on the intentions of the observer. In this fMRI study, twenty participants observed identical actions under different instruction contexts. The task was either to understand the actions, identify the physical features of the actions, or passively observe the actions. A multi-voxel pattern analysis revealed unique patterns of activation in ventral premotor cortex and inferior parietal lobule across the different contexts. The results suggest that ventral premotor and inferior parietal areas respond differently to observed actions depending on the mindset of the observer. This is consistent with the view that these regions do not merely process observed actions passively, but play an active role in action understanding.

Toward a Comprehensive Understanding of Intergroup Contact: Descriptions and Mediators of Positive and Negative Contact Among Majority and Minority Groups

Positive contact predicts reduced prejudice, but negative contact may increase prejudice at a stronger rate. The current project builds on this work in four ways: establishing an understanding of contact that is grounded in subjective experience, examining the affective mediators involved in the negative contact–prejudice relationship, extending research on the effects of positive and negative contact to minority groups, and examining the contact asymmetry experimentally. Study 1 introduced anger as a mediator of the relationships between positive and negative contact and prejudice among White Americans (N = 371), using a contact measure that reflected the frequency and intensity of a wide range of experiences. Study 2 found a contact asymmetry among Black and Hispanic Americans (N = 365). Study 3 found initial experimental evidence of a contact asymmetry (N = 309). We conclude by calling for a more nuanced understanding of intergroup contact that recognizes its multifaceted and subjective nature.

Applying the contact hypothesis to anti-fat attitudes: contact with overweight people is related to how we interact with our bodies and those of others.

This paper is the first to apply the contact hypothesis, a social psychological theory of prejudice reduction, to the field of weight bias. It aims to investigate whether contact with overweight people is associated with the extent to which people report weight bias, as well as vigilance around their own bodies. In 2013 we recruited 1176 American participants to complete surveys regarding prejudice toward overweight people, as well as a suite of measures capturing peoples relationships with their own weight (fat talk, drive for thinness, and body-checking behavior). Positive contact with overweight people predicted decreased prejudice, regardless of whether participants were overweight (p < .001) or not (p = .003). However, negative contact was a stronger predictor of increased prejudice (p < .001 for both samples). For non-overweight participants, any contact with overweight people (whether positive or negative) predicted increased body-checking behaviors (positive-p = .002, negative-p < .001) and fat talk (positive-p = .047, negative-p < .001), and negative contact predicted increased drive for thinness (p < .001). However, for those who were overweight a different picture emerged. While negative contact predicted increased body-checking behaviors (p < .001) and fat talk (p < .001), positive contact was protective, predicting decreased drive for thinness (p = .001) and body-checking behaviors (p < .001). This paper demonstrates that the interactions we have with overweight people are inherently tied to both our attitudes towards them and our relationship with our own bodies.

Pre-experimental familiarization increases hippocampal activity for both targets and lures in recognition memory: An fmri study

In the present study, items pre-exposed in a familiarization series were included in a list discrimination task to manipulate memory strength. At test, participants were required to discriminate strong targets and strong lures from weak targets and new lures. This resulted in a concordant pattern of increased “old” responses to strong targets and lures. Model estimates attributed this pattern to either equivalent increases in memory strength across the two types of items (unequal variance signal detection model) or equivalent increases in both familiarity and recollection (dual process signal detection [DPSD] model). Hippocampal activity associated with strong targets and lures showed equivalent increases compared with missed items. This remained the case when analyses were restricted to high-confidence responses considered by the DPSD model to reflect predominantly recollection. A similar pattern of activity was observed in parahippocampal cortex for high-confidence responses. The present results are incompatible with “noncriterial” or “false” recollection being reflected solely in inflated DPSD familiarity estimates and support a positive correlation between hippocampal activity and memory strength irrespective of the accuracy of list discrimination, consistent with the unequal variance signal detection model account.

Weight Stigma Predicts Poorer Psychological Well-Being Through Internalized Weight Bias and Maladaptive Coping Responses: Weight Stigma, Coping, and Psychological Well-Being

Weight‐based stigmatization is associated with negative psychological and behavioral consequences, but individuals respond to stigma in different ways. The present study aimed to understand some of the factors that predict how one will cope with weight stigma and how different coping responses predict psychological well‐being.

Risk and resiliency factors related to body dissatisfaction and disordered eating: The identity disruption model

OBJECTIVE The current study examined a theoretical model (the identity disruption model) linking negative early life experiences to body dissatisfaction and disordered eating via self-concept clarity and sociocultural factors (internalization of beauty ideals and appearance comparison tendencies). METHOD 1,023 participants (52% women) completed a series of questionnaires online, including measures of negative early life experiences and childhood abuse, self-concept clarity, internalization of beauty ideals, appearance comparison tendencies, sociocultural pressure to improve ones appearance, body dissatisfaction, and disordered eating. RESULTS Structural equation modeling indicated that self-reported early adversity was associated with lower self-concept clarity, which in turn was associated with greater internalization of beauty ideals and more frequent appearance comparisons. Internalization and appearance comparisons were associated with body image concerns, which in turn were associated with disordered eating and exercise behaviors. There were few sex differences in these paths. DISCUSSION These findings provide initial conceptual support for the identity disruption model and extend previous models of body dissatisfaction and disordered eating to include processes that occur earlier in life. This model opens up the possibility for new interventions that are targeted toward those who are most vulnerable to developing body dissatisfaction and disordered eating.

Coping with weight stigma: development and validation of a Brief Coping Responses Inventory

People who are overweight or obese are frequently stigmatized because of their weight, but there has been limited exploration of how people cope with these experiences. The Coping Responses Inventory (CRI) assesses a wide range of coping strategies in response to weight stigma; however, its length (99 items) may have prevented it from being widely used. The aim of the current research (four studies; total N = 1,391) was to develop and validate a Brief CRI. This 10‐item measure consists of two subscales that assess core coping responses to weight stigma: reappraisal and disengagement coping. Reappraisal coping is an adaptive form of coping that is associated with greater well‐being, whereas disengagement coping reflects a maladaptive form of coping that is associated with poorer well‐being. The Brief CRI provides a quick and effective way to assess coping with weight stigma, and its use has the potential to advance an understanding of the consequences of weight stigma.

Self-Concept Clarity and Body Dissatisfaction

In this chapter, we outline a theoretical model in which early adverse experiences lead to body dissatisfaction and disordered eating by impairing the development of a clear and coherent sense of self. We review empirical evidence linking early adversity and lower self-concept clarity. Relative to individuals high in self-concept clarity, those low in self-concept clarity are in turn more likely to have internalized societal standards of attractiveness and are more likely to compare their appearance to others. Individuals who internalize attractiveness ideals and engage in appearance comparisons report being more dissatisfied with their bodies, and body dissatisfaction is one of the most robust predictors of disordered eating. Consistent with theorizing that people low in self-concept clarity are more vulnerable to external sources of self-definition, we propose that this path to body dissatisfaction and disordered eating may be particularly likely for those people who are low in self-concept clarity and who also perceive strong external pressures to look a certain way. In sum, we propose that low self-concept clarity (potentially as a result of early adversity) can lead to harmful outcomes to the extent that it makes people vulnerable to internalizing unhealthy external identities. Thus, providing people low in self-concept clarity with positive sources of identity may be one way to mitigate such outcomes.