Interoceptive fear conditioning as a learning model of panic disorder: an experimental evaluation using 20% CO(2)-enriched air in a non-clinical sample

Despite the role afforded interoceptive fear conditioning in etiologic accounts of panic disorder, there are no good experimental demonstrations of such learning in humans. The aim of the present study was to evaluate the interoceptive conditioning account using 20% carbon dioxide (CO(2))-enriched air as an interoceptive conditioned stimulus (CS) (i.e., physiologically inert 5-s exposures) and unconditioned stimulus (US) (i.e., physiologically prepotent 15-s exposures). Healthy participants (N=42) were randomly assigned to one of three conditions: a CS-only, contingent CS-US pairings, or unpaired/non-contingent CS and US presentations. Electrodermal and self-report (e.g., distress, fear) served as indices of conditioned emotional responding. Results showed greater magnitude electrodermal and evaluative fear conditioning in the paired relative to the CS-only condition. The explicitly unpaired condition showed even greater electrodermal and evaluative responding during acquisition, and marked resistance to extinction. The latter results are consistent with the possibility that the unpaired procedure constituted a partial reinforcement procedure in which CO(2) onset was paired with more extended CO(2) exposure on 50% of the trials. Overall, the findings are consistent with contemporary learning theory accounts of panic.     

The Impact of Demand Characteristics on Brief Acceptance- and Control-Based Interventions for Pain Tolerance

The present analog study compared the effectiveness of an acceptance- and control-based intervention on pain tolerance using a cold pressor task, and is a partial replication and extension of the Hayes, Bissett et al. (Hayes, S. C., Bissett, R.T., Korn, Z., Zettle, R. D., Rosenfarb, I. S., Cooper, L. D., & Grundt, A. M. (1999). The impact of acceptance versus control rationales on pain tolerance. The Psychological Record, 49, 33-47) study. Our aim was to test the effects of a nonspecific source of therapeutic change within the context of ACT therapy. Otherwise healthy undergraduates (N = 20) were exposed to a cold pressor task before, immediately after, and 10 min following one of the two interventions. Half of the participants also were assigned to a high demand characteristic condition in which the experimenter maintained close physical proximity, eye contact, and placed subtle social pressure on participants to please the experimenter. The results showed that the most important factor influencing latency to withstand the cold pressor task was social pressure. The acceptance-based intervention was more subject to demand than the control strategy. Evaluative ratings of pain were unaffected by the demand manipulation. The current data suggest that demand characteristics can exert a significant positive impact on the outcome of therapeutic protocols. The implications of this view for acceptance- and control-based psychosocial interventions are discussed.     

Interpersonal determinants of attitude change following counterattitudinal behavior

In a test of predictions derived from an identity-analytic model of self-presentational behavior, individuals who privately endorsed positive or negative attitudes about sexual behavior were asked to deliver a prosexuality speech while alone, while watched by observers, or while being watched by observers who questioned the morality of the subject’s actions. Subsequent attitude measures indicated that the subjects who initially adopted negative attitudes justified their behavior by expressing more favorable attitudes about sexuality, but only when no audience witnessed their speech. When an audience was present, these individuals emphasized their lack of choice. In contrast, subjects who privately endorsed positive attitudes publicly expressed less favorable attitudes when their morality was challenged by the observers. These findings suggest that attitude change following counterattitudinal behavior (a) stems from private image-maintenance needs as well as public self-presentational concerns, and (b) is sometimes designed to secure an image of morality as well as an image of consistency.     

Stimulus correlates of tachistoscopic discrimination-recognition performance: Compactness,jaggedness, and areal asymmetry

The utility of three physical dimensions (compactness, jaggedness, and areal asymmetry) of four-sided random forms on discrimination-recognition performance was examined. Six experimental conditions were defined by constructing discrimination-recognition problems wherein forms were paired on the basis of a high or low value on each of the three physical dimensions. Twenty-six Ss were randomly assigned to each experimental condition and were tested on five problems, four times at each of five single form duration times. Each problem presentation consisted of selecting which of two forms had been previously exposed at the selected duration. Analyses of the number of correct responses indicated support for the existence of a selective attention process and the utility of the compactness physical dimension.     

Imagining Disability Futurities

This article explores twelve short narrative films created by women and trans people living with disabilities and embodied differences. Produced through Project Re?Vision, these micro documentaries uncover the cultures and temporalities of bodies of difference by foregrounding themes of multiple histories: body, disability, maternal, medical, and/or scientific histories; and divergent futurities: contradictory, surprising, unpredictable, opaque, and/or generative futures. We engage with Alison Kafer's call to theorize disability futurity by wrestling with the ways in which “the future” is normatively deployed in the service of able‐bodiedness and able‐mindedness (Kafer 2013 ), a deployment used to render bodies of difference as sites of “no future” (Edelman 2004 ). By re‐storying embodied difference, the storytellers illuminate ongoing processes of remaking their bodily selves in ways that respond to the past and provide possibilities for different futures; these orientations may be configured as “dis‐topias” based not on progress, but on new pathways for living, uncovered not through evoking the familiar imaginaries of curing, eliminating, or overcoming disability, but through incorporating experiences of embodied difference into time. These temporalities gesture toward new kinds of futures, giving us glimpses of ways of cripping time, of cripping ways of being/becoming in time, and of radically re‐presencing disability in futurity.     

Superior performance of blind compared with sighted individuals on bimanual estimations of object size

Five preliminary experiments on sighted individuals revealed marked overestimation on an object size-estimation task using a bimanual response. These experiments ruled out the possibility that overestimation was due to the mode of visual presentation (whether two-dimensional or three-dimensional), the input modality (visual or kinesthetic), or the influence of other visual cues. The main experiment then investigated whether these distortions are due to visual experience by using a variant of the same task to test 24 blind and 24 sighted control participants. Remarkably, the sighted control participants overestimated object size, on average, but the blind participants did not. A follow-up experiment demonstrated that visual memory was the primary influence causing the size over-estimations. We conclude that blind individuals are more accurate than sighted individuals in representing the size of familiar objects because they rely on manual representations, which are less influenced by visual experience than are visual memory representations.     

Emotion Regulation and the Anxiety Disorders: An Integrative Review

The construct of emotion regulation has been increasingly investigated in the last decade, and this work has important implications for advancing anxiety disorder theory. This paper reviews research demonstrating that: 1) emotion (i.e., fear and anxiety) and emotion regulation are distinct, non-redundant, constructs that can be differentiated at the conceptual, behavioral, and neural levels of analysis; 2) emotion regulation can augment or diminish fear, depending on the emotion regulation strategy employed; and 3) measures of emotion regulation explain incremental variance in anxiety disorder symptoms above and beyond the variance explained by measures of emotional reactivity. The authors propose a model by which emotion regulation may function in the etiology of anxiety disorders. The paper concludes with suggestions for future research.     

Investigating Perceptions of Students to a Peer-Based Academic Integrity Presentation Provided by Residence Dons

This study investigated students’ (n?=?819) perceptions following a prepared, common presentation regarding academic integrity provided by their residence dons. This peer instruction study utilized both quantitative and qualitative analyses of survey data within a pre-test post-test design. Overall, students reported gains in knowledge, as well as confidence in their knowledge of academic integrity. Notably, students reported increases in their personal value for academic integrity after participating in the presentations. Overall, the quality and content of the presentations were judged positively, and participants’ ratings of the presentation were predictive of increases in personal value of academic integrity, as well as self-reported knowledge and confidence gains. Qualitative analyses supported that the key ideas in the presentation served as the focal material for discussion, but also introduced specific topics that students wanted to explore in greater depth.