This study further tested an associative-deficit hypothesis (ADH; M. Naveh-Benjamin, 2000), which attributes a substantial part of older adults' deficient episodic memory performance to their difficulty in merging unrelated attributes-units of an episode into a cohesive unit. First, the results of 2 experiments replicate those observed by M. Naveh-Benjamin (2000) showing that older adults are p...

There have been reports in the literature of both impaired (Zaidel and Sperry, 1974) and intact (LeDoux et al., 1977) memory performance following callosotomy. In the present article, memory is examined in patients who received either partial or complete callosotomy in an effort to determine (1) if there is a memory deficit following callosotomy, (2) if certain types of callosotomy are more lik...

Individuals learning together do so less effectively than individuals learning alone, an effect known as the collaborative encoding deficit (Barber, Rajaram, & Aron, 2010). In the present studies we examined whether providing participants with a warning about the collaborative encoding deficit would increase their encoding task performance, and reduce subsequent memory deficits. Across two expe...

Memory dysfunction is an important feature in the clinical presentation of Huntington's disease (HD) and may precede the onset of motor symptoms. Although several studies have contributed to the quantitative and qualitative description of memory impairments in HD, the characterization of episodic memory impairments has varied considerably. Whereas most studies report significant impairments on ...

working memory impairment is one of the most important cognitive deficits in patients with mild traumatic brain injury that affect mental health status even in the early stages of the disease. the purpose of this study was to evaluate the correlation between the working memory and mental health status in traumatic brain injury (tbi) patients. this cohort study was performed on 50 tbi patients a...