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Background

Depression is characterised by a heightened self-focus, which is believed to be associated with differences in emotion and reward processing. However, the precise relationship between these cognitive domains is not well understood. We examined the role of self-reference in emotion and reward processing, separately and in combination, in relation to depression.

Methods

Adults experiencing varying levels of depression (n = 144) completed self-report depression measures (PHQ-9, BDI-II). We measured self, emotion and reward processing, separately and in combination, using three cognitive tasks.

Results

When self-processing was measured independently of emotion and reward, in a simple associative learning task, there was little association with depression. However, when self and emotion processing occurred in combination in a self-esteem go/no-go task, depression was associated with an increased positive other bias [b = 3.51, 95% confidence interval (CI) 1.24–5.79]. When the self was processed in relation to emotion and reward, in a social evaluation learning task, depression was associated with reduced positive self-biases (b = 0.11, 95% CI 0.05–0.17).

Conclusions

Depression was associated with enhanced positive implicit associations with others, and reduced positive learning about the self, culminating in reduced self-favouring biases. However, when self, emotion and reward processing occurred independently there was little evidence of an association with depression. Treatments targeting reduced positive self-biases may provide more sensitive targets for therapeutic intervention and potential biomarkers of treatment responses, allowing the development of more effective interventions.

Teasdale's (1988) differential activation hypothesis proposes that a tendency for negative mood to activate latent negative self-schemas characterises people at risk for depression. The current study tested predictions from this hypothesis in a community sample of 102 adolescents who were free from history of psychiatric illness, and who were subdivided according to level of emotionality, a temperamental style as assessed by parental questionnaire. Amusical mood induction task was used to induce temporary mild dysphoria, and the effect of mood induction on self-schemas was assessed. There was no difference between high and low emotionality groups in the liability to sad mood induction. However, adolescents with high emotionality endorsed significantly more negative self-descriptors after dysphoric, but not after neutral, mood induction. This was not accounted for by level of self-reported depressive symptoms over the previous week. This suggests that a “dysphoric mood induction challenge” may provide important information about vulnerability to depression that is not identified by routine self-report of mood or cognitions.

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Self-processing in relation to emotion and reward processing in depression

Latent Negative Self-schema and High Emotionality in Well Adolescents at Risk for Psychopathology

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2 results

Self-processing in relation to emotion and reward processing in depression

Latent Negative Self-schema and High Emotionality in Well Adolescents at Risk for Psychopathology