Retrieval-induced forgetting predicts failure to recall negative autobiographical memories

There is a positivity bias in autobiographical memory such that people are more likely to remember positive events from their past than they are to remember negative ones. Inhibition may promote this positivity bias by deterring negative memories from being retrieved. In our first experiment, we measured individual differences in retrieval-induced forgetting, a phenomenon believed to be the consequence of retrieval inhibition, and correlated that measure with individual differences in the recall of positive and negative autobiographical memories. Participants who exhibited lower levels of retrieval-induced forgetting recalled significantly more negative memories despite recalling fewer positive memories. In our second experiment, participants attempted to recall negative memories from childhood and from the previous month. Participants who exhibited lower levels of retrieval-induced forgetting recalled significantly more negative memories in both conditions. These results suggest that inhibition plays a key role in preventing the retrieval of negative autobiographical memories.