Integrating the cognitive-specificity and dual vulnerability hypotheses : implications for vegetative and cognitive/affective differences in seasonal, nonseasonal, and sub-syndromal seasonal depression / Jennine S. Rawana.

Abstract

This study compared seasonal affective disorder (SAD), nonseasonal depression, sub-syndromal SAD, and control groups on dysfunctional eating cognitions and behaviours, physical activity levels, cognitive content specificity to winter stimuli, interpersonal context-specificity, response styles to depressed mood, and general negative attitudes. Study participants : Lakehead University students and staff and residents of Thunder Bay, Northwestern Ontario, Canada.