A Latent Profile Analysis of Implicit and Explicit Cognitions Associated with Depression

Dual-process cognitive profiles associated with depression were identified in an undergraduate sample (N = 306) and dysphoric sub-sample (n = 57). Two Latent Profile Analyses (LPAs) were conducted on four implicit and four explicit cognitions associated with depression
(self-esteem, negative memory, positive memory and dysfunctional beliefs). The first LPA, performed on the total sample, produced
a three-profile solution reflecting quantitative shifts from generally negative, through intermediate, to generally positive
biases on both implicit and explicit indicators. Patterns of biases across the profiles were associated with incremental decreases
in current depressive symptoms, and logistic regression revealed that profile membership significantly predicted depression
status 3 months later. Sequential logistic regression indicated that implicit self-esteem was the strongest predictor of subsequent
dysphoria. The second LPA, focusing on a subgroup of dysphoric participants, identified two qualitatively distinct profiles
that may represent cognitive subtypes of depression: (1) a schematic profile with multiple negative biases and (2) a profile
dominated by implicit negative memory. These results are consistent with the dual-process premise that implicit and explicit
cognitive processes are involved in depression and suggest that treatment efficacy may be improved by incorporating strategies
that address implicit cognitive biases.