Attentional bias to threat in clinical anxiety states

Abstract

Attentional responses to threat stimuli were assessed in anxious patients, normal controls, and subjects who had recovered from a clinical anxiety state. The main aims of the study were: (1) to replicate MacLeod, Mathews, and Tata's (1986) finding of an attentional bias to threat in currently anxious patients compared with normal control subjects; (2) to assess whether the bias is related to the predominant worries of anxious patients; and (3) to investigate whether the bias is present in recovered anxious patients. The original finding of an anxiety-related attentional bias was replicated. The results indicated that the extent to which anxious patients selectively attended to social threat words was associated with the seventy of their social worries. The attentional responses of the recovered anxious group were not significantly differentiated from those of the currently anxious or normal control groups.     

Anxiety and the allocation of attention to threat

Using a probe detection technique we have recently demonstrated that anxious subjects consistently deploy attention towards threat-related stimuli, whereas non-anxious controls tend to move attention away from such material (MacLeod, Mathews, & Tata, 1986).

The current study employed the same paradigm but attempted to distinguish the role of trait and state anxiety by testing high- and low-trait students when state anxiety was relatively low (12 weeks before a major examination) and again when it was relatively high (one week before this examination). High-trait subjects alone tended to shift attention towards generally threatening material on both test occasions. Results for examination-related stimuli were more complex. Increased proximity to the examination was associated with an increase in attentional bias towards such threat stimuli in high-trait subjects, but with increased attentional avoidance of such stimuli in low-trait subjects. It is suggested that the attentional response to currently relevant stress-related stimuli may be associated with neither trait nor state anxiety alone, but with an interactive function involving both these variables. These results are discussed in relation to existing models of emotion and cognition, and alternative interpretations of the findings are considered.     

Experimental modification of attribution processes

Attributional style is hypothesized to be a causative factor in depression vulnerability; however, no studies to date have examined whether manipulation of attributional style influences depressed mood. The purpose of this study was to determine whether computer-based cognitive bias modification (CBM) procedures could modify attributional style and influence stress vulnerability. Participants were provided with multiple training trials that were intended to promote the use of either a positive or a negative attributional style. Compared with individuals in the negative attributional style condition, individuals in the positive attributional style condition showed decreased tendency to make self-deficient causal attributions for poor performance on a difficult anagram test. Furthermore, individuals in the positive attributional style condition reported less depressed mood in response to this academic stressor. These results suggest that attributional style is not invariable and can potentially be modified with CBM approaches.     

A direct link between gaze perception and social attention

How information is exchanged between the cognitive mechanisms responsible for gaze perception and social attention is unclear. These systems could be independent; the "gaze cueing" effect could emerge from the activation of a general-purpose attentional mechanism that is ignorant of the social nature of the gaze cue. Alternatively, orienting to social gaze direction might be directly determined by the operation of cognitive mechanisms specifically dedicated to gaze perception. This second notion is the dominant assumption in the literature, but there is little direct support for this account. Here, we systematically manipulated observers' perception of gaze direction by implementing a gaze adaptation paradigm. Gaze cueing was reduced only in conditions where perception of specific averted gaze stimuli was impaired (Experiment 1). Adaptation to a pointing stimulus failed to impact gaze cueing (Experiment 2). Overall, these data suggest a direct link between the specific operation of gaze perception mechanisms and the consequential orienting of attention.     

Cognitive predictors of posttraumatic stress symptoms six months following acute coronary syndrome

This study examined patients' illness representations assessed shortly after an acute coronary syndrome (ACS) as predictors of posttraumatic stress symptoms six months later. Illness representations were assessed in ACS patients using standard measures at a home visit three weeks after discharge from hospital. Posttraumatic stress symptoms were assessed at the same time, and again six months later. Patients were aged 61 years on average, the majority being men (89.8%) of white European decent (89%). Greater posttraumatic symptoms at six months were associated with beliefs that the illness would last a long time (timeline), that it had an unpredictable time course (timeline--cyclical), greater consequences, less personal and treatment control, poorer illness coherence and stronger negative emotional representations (emotional upset relating to the illness; p?相似文献   

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