Helen M. Lyon

Bio: Helen M. Lyon is an academic researcher. The author has contributed to research in topics: Bipolar disorder & Social cognition. The author has an hindex of 2, co-authored 2 publications receiving 427 citations.

Social cognition and the manic defense: attributions, selective attention, and self-schema in bipolar affective disorder.

Abstract: Manic patients, depressed bipolar patients, and normal controls were compared on measures of social cognition. Manic patients showed a normal self-serving bias on the Attributional Style Questionnaire, but depressed patients attributed negative events more than positive events to self. On an implicit test of attributional style, both patient groups attributed negative events more than positive events to self. Both patient groups showed slowed color naming for depression-related but not euphoria-related words. Manic patients, like normal controls, endorsed mainly positive words as true of self but, like the depressed patients, recalled mainly negative words. Findings from the implicit tests indicate a common form of psychological organization in manic and depressed patients, whereas the contrasts between the scores on the implicit and explicit measures are consistent with the hypothesis of a manic defense.

The defensive function of persecutory delusions. Evidence from attribution tasks.

Abstract: Abnormalities of 'social' reasoning were investigated in patients suffering from persecutory delusions and in matched depressed and normal controls using transparent (obvious) and opaque (unobvious) tests of attributional style. Whereas depressed and normal subjects yielded similar causal inferences for both attributional measures, the deluded subjects showed a marked shift in internality, attributing negative outcomes to external causes on the transparent Attributional Style Questionnaire but, on the more opaque Pragmatic Inference Task, attributing negative outcomes to internal causes and thus showing a cognitive style resembling that of the depressed group. This finding, interpreted in terms of explicit versus implicit judgements, supports the hypothesis that delusions function as a defence against underlying feelings of low self-esteem.

Is There a Universal Positivity Bias in Attributions? A Meta-Analytic Review of Individual, Developmental, and Cultural Differences in the Self-Serving Attributional Bias.

Abstract: Researchers have suggested the presence of a self-serving attributional bias, with people making more internal, stable, and global attributions for positive events than for negative events. This study examined the magnitude, ubiquity, and adaptiveness of this bias. The authors conducted a meta-analysis of 266 studies, yielding 503 independent effect sizes. The average d was 0.96, indicating a large bias. The bias was present in nearly all samples. There were significant age differences, with children and older adults displaying the largest biases. Asian samples displayed significantly smaller biases (d = 0.30) than U.S. (d = 1.05) or Western (d = 0.70) samples. Psychopathology was associated with a significantly attenuated bias (d = 0.48) compared with samples without psychopathology (d = 1.28) and community samples (d = 1.08). The bias was smallest for samples with depression (0.21), anxiety (0.46), and attention-deficit/hyperactivity disorder (0.55). Findings confirm that the self-serving attributional bias is pervasive in the general population but demonstrates significant variability across age, culture, and psychopathology.

Cognitive Behavioural Processes across Psychological Disorders: A Transdiagnostic Approach to Research and Treatment

Abstract: Cognitive Behavioural Therapy (CBT) has established itself as one of the most effective therapies for treating a wide range of psychological disorders. However, research and treatment in this field typically adopts a DSM driven 'disorder-focused' approach - researchers and clinicians target a specific disorder, try to understand its aetiology and maintenance, and try to develop more effective strategies to treat the disorder. This book proposes an insightful and original approach to understanding these disorders, one that focuses on what they have in common. Instead of examining in isolation, for example, obsessive compulsive disorders, insomnia, schizophrenia, it asks - what do patients with these disorders have in common? It takes each cognitive and behavioural process - attention, memory, reasoning, thought, behaviour, and examines whether it is a transdiagnostic process - i.e., serves to maintain a broad range of psychological disorders. Having shown how these disorders share several important processes, it then describes the practical implications of such an approach to diagnosis and treatment. Importantly it explores why the different psychological disorders can present so differently, despite being maintained by the same cognitive and behavioural processes. It also provides an account of the high rates of comorbidity observed among the different disorders. This book provides a novel review and integration of the empirical literature and gives clinicians and researchers a valuable new theoretical base for assessing and treating psychological disorders. Cognitive Behavioural Therapy (CBT) has established itself as one of the most effective therapies for treating a wide range of psychological disorders. However, research and treatment in this field typically adopts a DSM driven 'disorder-focused' approach - researchers and clinicians target a specific disorder, try to understand its aetiology and maintenance, and try to develop more effective strategies to treat the disorder. This book proposes an insightful and original approach to understanding these disorders, one that focuses on what they have in common. Instead of examining in isolation, for example, obsessive compulsive disorders, insomnia, schizophrenia, it asks - what do patients with these disorders have in common? It takes each cognitive and behavioural process - attention, memory, reasoning, thought, behaviour, and examines whether it is a transdiagnostic process - i.e., serves to maintain a broad range of psychological disorders. Having shown how these disorders share several important processes, it then describes the practical implications of such an approach to diagnosis and treatment. Importantly it explores why the different psychological disorders can present so differently, despite being maintained by the same cognitive and behavioural processes. It also provides an account of the high rates of comorbidity observed among the different disorders. This book provides a novel review and integration of the empirical literature and gives clinicians and researchers a valuable new theoretical base for assessing and treating psychological disorders.

Cognitive approaches to delusions: a critical review of theories and evidence.

Abstract: Purpose. To review critically the evidence for three contemporary theories of delusions. Methods. The theoretical approaches to delusions proposed by Frith and colleagues (‘theory of mind’ deficits), Garety and colleagues (multi-factorial, but involving probabilistic reasoning biases) and Bentall and colleagues (attributional style and self-discrepancies) are summarised. The findings of empirical papers directly relevant to these proposals are critically reviewed. These papers were identified by computerised literature searches (for the years 1987-1997) and a hand search. Results. The evidence does not unequivocally support any of the approaches as proposed. However, strong evidence is found to support modifications of Garety and colleagues and Bentall and colleagues theories. Studies have replicated a ‘jumping to conclusions’ data-gathering bias and an externalising attributional bias in people with delusions. There is preliminary evidence for a ‘theory of mind’ deficit, as proposed by Frith, although possibly related to a more general reasoning bias. Evidence for an underlying discrepancy between ideal and actual self-representations is weaker. Conclusions. A multi-factorial model of delusion formation and maintenance incorporating a data-gathering bias and attributional style, together with other factors (e.g. perceptual processing, meta-representation) is consistent with the current evidence. It is recommended that these findings be incorporated into cognitive therapy approaches. However, there are limitations to existing research. Future studies should incorporate longitudinal designs and first episode studies, and should not neglect the co-morbidity of delusions, including affective processes, or the multi-dimensional nature of delusions.