情動的情報が記銘に与える影響と抑うつ傾向の関連

抄録

A wealth of evidence has indicated that an abundance of negative biases and a lack of positive biases in memory could be an important factors in the onset and subsequent maintenance of depression. Moreover, recent studies have suggested that attentional biases influence memory biases and biases in the information input stage might play a key role in causing these biases. Nevertheless, most studies on memory biases have investigated only recall biases, with only a few studies directly examining encoding biases. Therefore the relationship between dysphoria and encoding biases was investigated using the recognition task described by Müller et al. (2009). Results indicated that encoding positive words enhanced encoding preceding and subsequent words in non-dysphoric participants, whereas this was not the case in dysphoric participants. These results suggest that dysphoria is associated with a paucity of encoding information presented temporally close to positive information. It is suggested that future studies should investigate the impact of processing emotional information on processing other types of information in people with depression.