Pictorial superiority effects in oldest-old people

We examined memory for pictures and words in middle-age (45–59 years), young-old (60–74 years), old-old (75–89 years), and the oldest-old adults (90–97 years) in the Louisiana Healthy Aging Study. Stimulus items were presented and retention was tested in a blocked order where half of the participants studied 16 simple line drawings and the other half studied matching words during acquisition. Free recall and recognition followed. In the next acquisition/test block a new set of items was used where the stimulus format was changed relative to the first block. Results yielded pictorial superiority effects in both retention measures for all age groups. Follow-up analyses of clustering in free recall revealed that a greater number of categories were accessed (which reflects participants’ retrieval plan) and more items were recalled per category (which reflects participants’ encoding strategy) when pictures served as stimuli compared to words. Cognitive status and working memory span were correlated with picture and word recall. Regression analyses confirmed that these individual difference variables accounted for significant age-related variance in recall. These data strongly suggest that the oldest-old can utilise nonverbal memory codes to support long-term retention as effectively as do younger adults.     

The Effect of User Control on the Cognitive and Emotional Processing of Pictures

This paper explores psychology related to the moment that control is exercised during interactions with media. What is the difference in the thoughtful and emotional engagement of viewers with the content presented between reacting to media versus controlling its onset? Subjects viewed pictures on a computer as part of a 2 (control) × 2 (picture type) × 16 (repetitions) × 2 (order) within-subjects experiment (N = 22). In one condition, subjects controlled the picture onset with a computer mouse. In the other condition, the computer controlled the picture onset. Heart rate and skin conductance were collected as indicators of the automatic attention and arousal elicited by each manipulation of control. Results showed that subjects exhibited a cardiac orienting response when the computer controlled the onset of emotional pictures. Subjects failed to orient when they had control over picture onset. Physiological arousal, as measured by skin conductance, was higher when subjects had control over picture onset. Subjects gave higher subjective ratings on valence and arousal for pictures that were presented by the computer. These results are discussed in relation to current assumptions about interactive media and audience activity.     

Working memory in the oldest-old: evidence from output serial position curves

In the present study, we examined adult age differences in short-term and working memory performance in middle-aged (45–64 years), young–old (65–74 years), old–old (75–89 years), and oldest–old adults (90 years and over) in the Louisiana Healthy Aging Study. Previous research suggests that measures of working memory are more sensitive to age effects than are simple tests of short-term memory Bopp and Verhaeghen (Journal of Gerontology: Psychological Sciences 60:223–233, 2005), Myerson, Emery, White, and Hale, (Aging, Neuropsychology, and Cognition 10:20–27, 2003). To test this hypothesis, we examined output serial position curves of recall data from three span tasks: forward and backward digit span and size judgment span. Participants’ recall patterns in the size judgment span task revealed that the two oldest groups of adults showed the largest decreases in recall performance across output serial positions, but did not differ significantly from each other. Correlation analyses indicated the strongest negative correlation with age occurred with the size judgment span task. Implications of these findings for understanding strategic processing abilities in late life are discussed.     

The contribution of the inferior parietal cortex to spoken language production

This functional MRI study investigated the involvement of the left inferior parietal cortex (IPC) in spoken language production (Speech). Its role has been apparent in some studies but not others, and is not convincingly supported by clinical studies as they rarely include cases with lesions confined to the parietal lobe. We compared Speech with non-communicative repetitive tongue movements (Tongue). The data were analyzed with both univariate contrasts between conditions and probabilistic independent component analysis (ICA). The former indicated decreased activity of left IPC during Speech relative to Tongue. However, the ICA revealed a Speech component in which there was correlated activity between left IPC, frontal and temporal cortices known to be involved in language. Therefore, although net synaptic activity throughout the left IPC may not increase above baseline conditions during Speech, one or more local systems within this region are involved, evidenced by the correlated activity with other language regions.     

Young people's perceptions of their vocational guidance needs: I. Priorities and pre-occupations

In spring 1981, 1,712 pupils in the third, fourth and fifth years of secondary education at 20 comprehensive schools in England completed a questionnaire about the priorities they gave to different aspects of vocational choice and preparation. Fifth-year pupils were followed up one year later, and perceived needs again recorded. Consistency between year-groups, and between fifth-year and follow-up, was high, suggesting that the perceived needs of even the third-year group were based on a realistic appraisal of the tasks they faced in entering employment. Systematic differences in ranked priority were found, however, with those who had left school giving much greater priority to work experience and less to discussions with family and teachers than those still at school. All ages reported considerable anxiety about finding work, with levels of rated anxiety on the other items being greatest amongst the third-year pupils.