Seasonal affective disorder in Australia: is photoperiod critical?
Within the limitations of a design based on retrospective self-report, the findings of the present study suggest that the diathesis for SAD/seasonality may not be photoperiod-specific. At least in Australia, there is provisional support for the proposal that human seasonality may have a broader psychological component. The findings are discussed in terms of established research into normal mood, trait personality and non-seasonal depression.
Choice featured in the majority of clinical interactions but clinicians and patients often disagreed whether this was the case. Choice was not associated with greater patient satisfaction.