Memory bias in Alzheimer disease and mild cognitive impairment: a narrative review

Abstract

Emotional information tends to be processed more than neutral information. This phenomenon, or bias, has been studied both in adults who generally better remember negative information, and in the elderly who show an opposite tendency and, therefore, remember better positive information characterized ('positive effect'). It is not clear, however, whether the elderly affected by neurodegenerative diseases show the positive effect and, in general, a memory bias. This narrative review aims to clarify whether memory bias persists in older adults with neurodegenerative disorders and its characteristics. The studies present in the literature suggest that the memory bias still exists in neurodegenerative pathologies, but the results appear inconsistent and inconsistent, and are unable to support the presence of a positive effect.

doi: 10.53240/2023topic3.032.01