Does helplessness cause depression, or do only depressed people become helpless? Comment on Alloy and Abramson

Alloy and Abramson reported that depressed people are accurate at assessing response-outcome contingencies, whereas normal people display various distortions. It is argued that such a finding causes problems for a learned helplessness theory of depression, because it suggests that people can only detect some of the conditions necessary for producing helplessness after they are already depressed. The presumed causal relation between helplessness and depression may be strengthened if one assumes that helplessness prevents the development of active hypothesis-testing strategies that would otherwise produced biased assessments of contingency.