A dimensional approach was used in order to investigate the association among depression symptomatology and sustained reward responsiveness (Berry, Tanovic, Joormann, and Sanislow, 2019). ERPs were recorded to investigate how the early responses to rewards and losses do change over time. The doors task is a simple gambling task and was applied to elicit the reward positivity and the feedback related negativity. The subjects were given instructions for making a choice for the door that they thought was having a prize behind it. The remaining half of the doors consisted of losses.
During the gambling task, the authors found evidence of an association among depression symptomatology and responses to rewards and losses During the task. A sustained reward positivity and an increment in the feedback related negativity ERP components were found. Larger symptoms of depression were related to larger responses to both reward as well as losses.
According to the authors, higher depression symptomatology in the general population might be related to both reward and loss responses during the experimental task (Berry et al., 2019).
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