Explaining age differences in temporal working memory

To determine the cognitive mechanisms underlying age differences in temporal working memory (WM), the authors examined the contributions of item memory, associative memory, simple order memory, and multiple item memory, using parallel versions of the delayed-matching-to-sample task. Older adults performed more poorly than younger adults on tests of temporal memory, but there were no age differences in nonassociative item memory, regardless of the amount of information to be learned. In contrast, a combination of associative and simple order memory, both of which were reduced in older adults, completely accounted for age-related declines in temporal memory. The authors conclude that 2 mechanisms may underlie age differences in temporal WM, namely, a generalized decline in associative ability and a specific difficulty with order information.     

Anthropocene in Context: A Response to Rasmussen

In response to Larry Rasmussen's article about religious ethics in the Anthropocene, I offer an analysis that both contextualizes and elaborates upon his ideas. I introduce other humanities disciplines that have already wrestled with this question, and scholars of color whose voices offer needed correctives to the colonial heritage of most academic disciplines. I explore topics including human agency, non-human agency, exploitation, and refuge. I encourage scholars in our field to move beyond questions of responsibility and lamentations of moral incompetence and into concepts of right relationality and analysis of grassroots climate action already taking place in religious, ethical contexts.     

Meditation and psychosocial adaptation: An exploratory study

The current study examined differential patterns of interrelationships between meditators and nonmeditators on issues pertaining to psychosocial adaptation. Subjects (N=66) were randomly selected from mailing lists provided by theAssociation of Transpersonal Psychology or were solicited via classified advertising in theChicago Tribune and theDallas Morning News. The findings of the current study indicate that there are no differences between meditators and nonmeditators on level of psychosocial adaptation. However examination of the zero-order correlations between dependent measures revealed differential patterns of interrelationships within the meditator and nonmeditator groups. The findings suggest that further research is needed which expands upon the influence of meditation on psychosocial adaptation by addressing topics specific to meditative practice. The implications for the development of qualitative research methods designed to investigate psychosocial parameters in transpersonal psychology are discussed.     

Implicit learning of new verbal associations

Implicit learning of a series of new verbal associations was studied in four experiments. The first two experiments demonstrated that learning of a repeating sequence of verbal stimuli may occur without awareness, but only when the stimulus-response mapping requires an attention-demanding activity: Subjects who were unaware of the sequence learned when instructed to categorize the stimuli, but not when instructed simply to read them. However, in both situations, unaware subjects performed no better than untrained control subjects in expressing their knowledge of the sequence explicitly. In Experiments 3 and 4, subjects showed implicit learning when the task involved either motor responses to verbal stimuli or verbal responses to spatially arranged stimuli. These findings are discussed in terms of the conditions under which implicit learning can be obtained. First, they demonstrate implicit learning of a set of new associations in the verbal domain. Second, the data suggest that attention is important in implicit learning. Finally, the degree of interitem organization that is familiar preexperimentally seems to partially determine the amount of implicit learning.     

Adult Age Differences in the Access and Deletion Functions of Inhibition

ABSTRACT

This study examined age differences in working memory using a delayed-matching-to-sample (DMTS) task. Based on the inhibitory decline hypothesis, which posits that older adults are more susceptible to interference, age differences were expected to be greater for older adults when irrelevant information was present during encoding. Two experiments tested both the access and deletion functions of inhibition. In both experiments, performance was equated for older and younger participants on a no-interference version of the DMTS task to control for age differences in encoding information into working memory. Results consistently showed equivalent effects of distraction for older and younger adults regardless of the difficulty of the perceptual discrimination of targets and distractors, the degree of processing of the distractors, or the semantic relationship between targets and distractors. These results support theories that propose age differences in encoding to explain age differences in working memory, and are inconsistent with theories that propose that older adults are more susceptible to interference than younger adults.     

Sex and Sociocultural Correlates of Urinary Incontinence in Israeli Preschool Children

Urinary incontinence in children aged 2 to 6 years whose mothers varied in ethnic descent, in level of education, and in immigration status was studied in Israel. Mothers of 302 children were interviewed in well-baby clinics regarding primary and secondary urinary incontinence of their children. A significant age trend was found for attaining primary urinary continence. However, various interactions between mothers' ethnic descent, mothers' level of education, and mothers' immigration status were associated with different rates of primary and secondary urinary incontinence in their children. Moreover, sex differences in rates of primary and secondary urinary incontinence were also associated with mothers' ethnic descent and level of education. It is suggested that different levels of maternal emotional availability to the child in the various subgroups can account for most of the findings.