Age-related differences in the course of cognitive skill acquisition: the role of regional cortical shrinkage and cognitive resources

This study examined the impact of age-related differences in regional cerebral volumes and cognitive resources on acquisition of a cognitive skill. Volumes of brain regions were measured on magnetic resonance images of healthy adults (aged 22-80). At the early stage of learning to solve the Tower of Hanoi puzzle, speed and efficiency were associated with age, prefrontal cortex volume, and working memory. A similar pattern of brain-behavior associations was observed with perseveration measured on the Wisconsin Card Sorting Test. None of the examined structural brain variables were important at the later stages of skill acquisition. When hypertensive participants were excluded, the effect of prefrontal shrinkage on executive aspects of performance was no longer significant, but the effect of working memory remained.     

Age-related differences in recognition memory for items and associations: Contribution of individual differences in working memory and metamemory

Ability to form new associations between unrelated items is particularly sensitive to aging, but the reasons for such differential vulnerability are unclear. In this study, we examined the role of objective and subjective factors (working memory and beliefs about memory strategies) on differential relations of age with recognition of items and associations. Healthy adults (N = 100, age 21 to 79) studied word pairs, completed item and association recognition tests, and rated the effectiveness of shallow (e.g., repetition) and deep (e.g., imagery or sentence generation) encoding strategies. Advanced age was associated with reduced working memory (WM) capacity and poorer associative recognition. In addition, reduced WM capacity, beliefs in the utility of ineffective encoding strategies, and lack of endorsement of effective ones were independently associated with impaired associative memory. Thus, maladaptive beliefs about memory in conjunction with reduced cognitive resources account in part for differences in associative memory commonly attributed to aging. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Surviving the early loss of a mother: daughters speak,by Anne Tracey

The purpose of this study is to empirically evaluate a coping response that is thought to be unique among older Catholics–suffering in silence. Two hypotheses are examined. The first predicts that older Catholics will be more likely than older Protestants to suffer in silence when ongoing economic difficulty is encountered. The second hypothesis specifies that the potentially deleterious effects of financial problems on depressive symptoms will be offset for older adults who prefer to suffer in silence. Data from an ongoing nationwide survey of older people in the United States provide support for both hypotheses.     

How do Jewish teachings relate to beliefs about depression in the strictly orthodox Jewish community?

The aim of this study was to explore whether and, if so, how Jewish teachings influence strictly orthodox Jewish beliefs about depression. The rabbinic literature was searched for Jewish teachings relevant to depression. Ten consenting strictly orthodox Jews were purposively selected and interviewed using a semi-structured interview schedule focussing on their beliefs about causes of and treatments for depression. Thematic analysis was used to analyse transcribed interviews and explore relationships between community beliefs and the Jewish teachings identified in the review. The key themes in both the rabbinic literature and the community included the overriding importance in Judaism of preserving life, using appropriate, acceptable means to do so, and obligations to help others. Contrasts between rabbinic teachings and community beliefs included community concerns about stigma, generally lacking in the rabbinic literature, and greater rabbinic emphasis on spiritual exertion in dealing with depression. Findings could prove useful to those managing depressed, orthodox Jews.