Age differences in hostility among middle-aged and older adults.

Multiple measures of hostility were administered to middle-aged and older volunteers. There was a positive association between age and self-report measures reflecting hostile beliefs about others, including cynicism and suspiciousness. There was a weak inverse relationship between age and self-report measures of the overt expression of anger and aggression, but no association between age and measures of covert hostility was found. There was a positive relationship between age and an assessment of hostile behavior that was based on the respondent's interaction style during an interview. The magnitude of these age trends did not differ between men (n?=?50) and women (n?=?75). Findings illustrate the multidimensional nature of hostility. They also have practical implications for older people because hostility is associated with psychological well-being and has been shown to have consequences for health and longevity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Age differences in overlapping-task performance: Evidence for efficient parallel processing in older adults.

Two psychological refractory period (PRP) experiments were conducted to examine overlapping processing in younger and older adults. A shape discrimination task (triangle or rectangle) for Task I (TI) and a lexical-decision task (word or nonword) for Task 2 (T2) were used. PRP effects, response time for T2 increasing as stimulus onset synchrony (SOA) decreased, were obtained for both age groups. The effect of word frequency on T2 was smaller at the short SOA than at the long SOA, reflecting slack effects, which were larger for older than younger adults in both experiments. These results suggest that older adults can perform lexical access of T2 in parallel with the processing of T2, at least as efficiently as younger adults. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Auditory habituation in young and older adults: The verbal transformation effect.

In 3 experiments, auditory massed repetition was used to examine age-related differences in habituation by means of the verbal transformation paradigm. Participants heard 10 words (5 high frequency and 5 low frequency), each presented 180 times, and they reported perceived changes in the repeated words (verbal transformations). In these experiments, older adults reported fewer illusory percepts than young adults. Older adults' loss of auditory acuity and slowing of processing, stimulus degradation (in young adults), and instructions biasing the report of these illusory percepts did not account for the fewer illusory percepts reported by the older adults. These findings suggest that older adults' reduced susceptibility to habituation arises from centrally located declines in the transmission of information within the word recognition pathway. The discussion focuses on the implications that these age-related declines may have on word identification during on-line speech perception. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Individual differences and reliability of paired associates learning in younger and older adults.

The authors modeled individual nonlinear trajectories of learning using structured latent growth curves based on an exponential function with 3 parameters: initial performance, learning rate, and asymptotic performance. The 3 parameters showed reliable individual differences and the between-parameter correlations indicated that participants with high learning rates recalled more items initially. The asymptotic performance was unrelated to the learning rate and the initial performance. In addition, age and speed of information processing were included in the analyses. Age mainly affected negatively the asymptotic and the initial performance whereas speed of information processing affected the learning rate positively. Reliability estimates based on 2 similar learning conditions were moderate overall. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gender differences in masking negative emotions: Ability or motivation?

Research has demonstrated that boys display greater negative affect than girls when they receive a disappointing gift. In this study, ability and motivation were investigated as possible reasons for the gender differences. First- and 3rd-grade children's emotion dissimulation in a disappointing gift task was compared with their degree of dissimulation in a highly motivating game task that required the same ability (masking disappointment with a positive expression) but involved a self-gain motive. If boys are motivated, can they hide their disappointment as well as girls? Boys reduced their expression of negative affect in the game task; however, they still showed higher levels of negativity than did the girls. Perhaps because of socialization experiences, girls have more practice in hiding disappointment and, therefore, are better skilled. Girls also showed higher levels of social monitoring behaviors than boys, and younger girls demonstrated the greatest number of tension behaviors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Osteoarthritis in older adults

Perivascular glial cells are thought to be involved in physiologic vascularization and also in pathologic angiogenesis in the central nervous system. We have previously shown that astrocytes are a source of transforming growth factor-beta (TGF-beta) and another inhibiting factor, which block endothelial cell growth and induce their apoptosis. Astroglia are also known to express vascular endothelial growth factor (VEGF), which is up-regulated during hypoxia. Here we demonstrate the effects of hypoxia on the expression of both TGF-beta and VEGF by retinal glial cells. Muller cells isolated from rat retina were incubated under hypoxia or normoxia and the resulting conditioned media (H-MCM and N-MCM) were assayed for their effects on growth of bovine retinal capillary endothelial (BRE) and the TGF-beta-sensitive mink lung epithelial CCL cells. The expression and quantities of VEGF and TGF-beta (active vs. latent form) were determined by immuno-adsorption, Western or Northern blotting, and ELISA. N-MCM stimulated BRE cell growth by twofold but inhibited CCL cells under similar assay conditions, whereas H-MCM had a weak stimulating effect on BRE and substantial inhibitory activity on CCL cells. Adsorption of MCM by specific antibodies as well as Western and Northern blot analysis indicated that stimulating and inhibitory activities of MCM are due to the presence of VEGF and TGF-beta, respectively. ELISA revealed that the hypoxia condition converts latent TGF-beta into its active form. In N-MCM, TGF-beta is found predominantly in the latent form, but in hypoxia MCM it is mainly active. Furthermore, it was found that treatment of Muller cells with exogenous TGF-beta under either hypoxia or normoxia increases VEGF expression in a time- and dose-dependent fashion. TGF-beta activation may, therefore, be prerequisite for hypoxia-induced up-regulation of VEGF and stimulation of angiogenesis in vivo.     

Simple and complex mental subtraction: Strategy choice and speed-of-processing differences in younger and older adults.

36 younger adults (10 male, 26 female; ages 18–38 yrs) and 36 older adults (14 male, 22 female; ages 61–80 yrs) completed simple and complex paper-and-pencil subtraction tests and solved a series of simple and complex computer-presented subtraction problems. For the computer task, strategies and solution times were recorded on a trial-by-trial basis. Older Ss used a developmentally more mature mix of problem-solving strategies to solve both simple and complex subtraction problems. Analyses of component scores derived from the solution times suggest that the older Ss are slower at number encoding and number production but faster at executing the borrow procedure. In contrast, groups did not appear to differ in the speed of subtraction fact retrieval. Results from a computational simulation are consistent with the interpretation that older adults' advantage for strategy choices and for the speed of executing the borrow procedure might result from more practice solving subtraction problems. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Latent inhibition in human adults without masking.

Latent inhibition refers to attenuated responding to Cue X observed when the X-outcome pairings are preceded by X-alone presentations. It has proven difficult to obtain in human adults unless the preexposure (X-alone) presentations are embedded within a masking (i.e., distracting) task. The authors hypothesized that the difficulty in obtaining latent inhibition with unmasked tasks is related to the usual training procedures, in which the preexposure and conditioning experiences are separated by a set of instructions. Experiment 1 reports latent inhibition without masking in a task in which preexposure and conditioning occur without interruption. Experiments 2 and 3 demonstrate that this attenuation in responding to target Cue X does not pass a summation test for conditioned inhibition and is context specific, thereby confirming that it is latent inhibition. Experiments 3 and 4 confirm that introducing instructions between preexposure and conditioning disrupts latent inhibition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Predicting nursing home admissions among incontinent older adults: a comparison of residential differences across six years

Whether or not rates of nursing home admissions among elders with urinary incontinence varied by their place of residence was investigated. We also examined whether any observed residential differences could be accounted for by factors other than incontinence that are known to influence rates of institutionalization. Data from the Longitudinal Study on Aging (1984-1990) were used to examine a sample who at baseline lived in community settings and reported problems with urinary incontinence (n = 719). Analyses indicate that residents of less urbanized and thinly populated nonmetropolitan counties were more likely to have a nursing home admission than elders in any other residential context. More importantly, these residential differences persisted in multivariate logistic regression models after controls were introduced for sociodemographic characteristics, measures of health status, and indicators of the social support networks of the elders.     

The effect of verbal elaborations on memory in young and older adults

The Stein paradigm was used to examine the circumstances under which verbal elaborations enhance memory in young and older adults. Subjects studied target adjectives that were embedded in one of three sentence contexts that varied in elaboration of the subject-adjective relationship: (1) nonelaborated base sentences; (2) base sentences with semantically consistent, but arbitrary verbal, elaborations; and (3) base sentences with explanatory verbal elaborations that clarified the significance of the subject-adjective relationship. The presence of the elaborations was varied at encoding and retrieval, and cued recall of the target adjectives was tested with incidental and intentional learning procedures. In Experiments 1A and 1B, explanatory elaborations at encoding and retrieval yielded the largest memorial facilitation for both young and older adults, and the benefit was comparable for the incidental and intentional learning measures. In Experiment 2, age-related differences in recall were minimal with explanatory elaborations at encoding and retrieval, but larger age differences occurred in the nonelaborated comparison conditions. In Experiment 3, explanatory elaborations present at encoding but not at retrieval enhanced recall when the original Stein stimuli were used, but not with the present stimuli. The implications of these results with regard to the mnemonic efficacy of verbal elaborations for young and older adults are discussed.     

Personality differences in attempted suicide versus suicide in adults 50 years of age or older.

The authors tested hypotheses concerning personality differences in treatment-seeking suicide attempters (AT; n = 60) and a community sample of suicides (SU; n = 43) over age 50. On the basis of prior research, the authors hypothesized that SU would be lower in Neuroticism and Openness and higher in Conscientiousness. A 2-group (AT vs. SU) multivariate analysis of covariance with NEO Personality Inventory--Revised (Informant Version) domain scores as dependent variables revealed that SU were lower in Neuroticism and higher in Conscientiousness. The authors conclude that AT and SU in this age group can be distinguished on the basis of informant ratings of personality traits. These differences can inform risk detection. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Providing support for distinctive processing: The isolation effect in young and older adults.

The isolation paradigm is the classic method for studying the effects of distinctiveness on memory (Hunt, 1995). Previous studies using the isolation paradigm with older adults (Bireta, Suprenant, & Neath, 2008; Cimbalo & Brink, 1982; Geraci, McDaniel, Manzano, & Roediger (2009); Vitali et al., 2006) placed the isolated items late in the study list. The current experiments, which are the first to investigate the isolation effect in young and older adults when the isolated item occurs early in the list, were motivated by a new framework for understanding age-related differences in the beneficial effects of distinctive processing. The framework, which is motivated by Hunt's (2006) discussion of distinctiveness and Craik's (1986) environmental support view, proposes that when contextual support is provided for the processing of both the difference and similarity components, older adults are more likely to show beneficial effects of distinctiveness. In Experiment 1, young adults showed both early and late isolation effects, while older adults showed only a late isolation effect. In the first experiment the isolated item was the word “table” in a list of fish names. In Experiment 2, the contrast between the isolated item and background items was increased by isolating numbers in a list of words. In the second experiment older adults, as well as young adults, showed an early isolation effect. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Genitourinary cancers in older adults

Prostate and bladder carcinoma are, in large part, diseases of older adults, and they are discussed in this context. Pathology, diagnosis, and staging are reviewed. Surgical and medical approaches to these malignancies, and the limitations of these approaches, are highlighted. Renal cell carcinoma, while a relatively rare neoplasm, remains a formidable challenge: approximately 50% of patients die within 5 years of diagnosis. Advances in molecular genetics and histopathologic classification, as well as surgical management and investigational therapies, are emphasized.     

Discourse behaviors in older adults

An overview of the changes in older adults' comprehension of language and discourse is provided before changes in production are discussed in some detail. Age-related changes in discourse production have been studied in terms of semantic skills, syntactic complexity, verbal fragmentation, information load, cohesion, macrostructural elements, and conversation. In spite of the heterogeneity in older adults' discourse behaviors, they have a tendency to use shorter, less complex sentences and more indefinite, ambiguous references. Nevertheless, the basic conversational skills of the normally aging elderly are usually well preserved.     

Sex comparisons in life satisfaction and psychosocial adjustment scores with an older adult sample: examining the effect of sex role differences in older cohorts

The present study examined how sex and other individual-difference factors (i.e., age level, locus of control orientation, and self-actualization subscale scores) relate to older adults' scores on life satisfaction and psychosocial adjustment. Seventy-eight older adults (n = 39 females) were recruited from independent-living retirement communities located in Pennsylvania. Results indicated that females in the sample were not significantly different in mean life satisfaction scores but were significantly lower in mean psychosocial adjustment scores than males in the sample. There were no significant age-level differences in mean scores. Qualitative data from unstructured post-testing interviews revealed that women were more likely to express regret and sometimes frustration toward perceived "missed opportunities" in life (e.g., career) due to expected social roles of being a wife and mother in the decades ranging from the 1920s through the 1960s; these feelings of regret or frustration were not expressed by any of the males in the study.     

Management of osteoarthritis in older adults

Management of osteoarthritis (OA) is directed primarily towards relief of pain and functional limitation. This article discusses a range of nonpharmacologic modalities, including education, social support, weight reduction, and exercise. Drug treatment should begin with adequate doses of acetaminophen. Guidelines for appropriate use of NSAIDs also are suggested in this article. Intraarticular steroids help a proportion of patients, particularly those with OA of the knee or thumb base; the role of intraarticular therapies remains uncertain. Surgery (total joint replacement) remains an excellent treatment for patients in whom medical treatment has failed to provide adequate symptom relief. Future developments are likely to include earlier intervention using drugs with the potential to modify the course of the disease.     

The effects of sad mood on memory in older adults: A test of the mood congruence effect.

Mood congruence effects have long been studied in younger adults. but not in older adults. Socioemotional selectivity theory (SST) suggests that mood congruence could operate differently in older adults. One hundred and nineteen younger and 78 older adults were randomly assigned to sad or neutral mood inductions, using combined Velten and music induction procedures. Results indicated that during sad mood induction both older and younger adults showed enhanced recall of sad words on delayed word list recall task and in autobiographical memory. However, only older adults displayed mood congruence effects on lexical ambiguity and lower recall of positive words in the word list task. Results provided partial support for developmental effects on mood congruence derived from SST. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Age differences in target identification as a function of retinal location and noise level: Examination of the useful field of view.

Foveal and peripheral target detection were compared in young adults (M age?=?22 years) and older adults (M age?=?66 years) who were optically corrected for the viewing distance. In a two-alternative, forced-choice task, target letters were presented at 0° to 10.5° from fixation. Targets were presented alone, flanked on each side by one noise element (i.e., nontarget letter), or embedded in a horizontal row of 19 noise elements. An Age?×?Noise Level?×?Eccentricity interaction was obtained, wherein age differences were largest for peripheral targets presented in noise. Slope analyses of latency data showed that the performance of young adults in the high-noise condition was most similar to that of older adults in the low-noise condition. At the functional level, results indicated that aging is associated with a restricted useful field of view. In addition, the data suggest that age differences in search can be described by a model in which older adults take smaller perceptual samples from the visual scene and scan these samples more slowly than do the young adults. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Treatment of depression in older adults: Personality considerations.

Discusses 2 personality variables—dependency and autonomy—as they relate to treatment of depression in older adults. The personality mode, dependent or autonomous, is seen as an influence on the causes and symptomatology of depression. The treatment implications are outlined. (4 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)