Effects of Item Difficulty on the Retrieval of Solutions during Cognitive Skill Acquisition: Age Differences

ABSTRACT

In cognitive skill learning, shifts to better strategies for obtaining solutions often occur while associations between problems and solutions are being strengthened. In two skill learning experiments, we examined the effects of item difficulty on the retrieval of solutions and the learning of problem–solution associations in younger and older adults. The results of both experiments demonstrated an ‘easy effect’ in both younger and older adults, such that the retrieval of solutions as well recognition memory for problems was best for the easier items. In addition, a ‘hard effect’ was found in younger adults, but not in older adults, whereby the retrieval of solutions as well as recognition memory for problems was better for harder items than for medium-difficulty items. The finding that increased computational demands at the item level delayed item memorization and the retrieval of solutions in older adults but not younger adults is consistent with a general-resources account of age-related differences in skill learning.     

Age-Related Differences in Strategy Knowledge Updating: Blocked Testing Produces Greater Improvements in Metacognitive Accuracy for Younger than Older Adults

ABSTRACT

Age-related differences in updating knowledge about strategy effectiveness after task experience have not been consistently found, perhaps because the magnitude of observed knowledge updating has been rather meager for both age groups. We examined whether creating homogeneous blocks of recall tests based on two strategies used at encoding (imagery and repetition) would enhance people's learning about strategy effects on recall. Younger and older adults demonstrated greater knowledge updating (as measured by questionnaire ratings of strategy effectiveness and by global judgments of performance) with blocked (versus random) testing. The benefit of blocked testing for absolute accuracy of global predictions was smaller for older than younger adults. However, individual differences in correlations of strategy effectiveness ratings and postdictions showed similar upgrades for both age groups. Older adults learn about imagery's superior effectiveness but do not accurately estimate the magnitude of its benefit, even after blocked testing.     

Verbal Learning Changes in Older Adults Across 18 Months

ABSTRACT

The major aim of this study was to investigate individual changes in verbal learning across a period of 18 months. Individual differences in verbal learning have largely been neglected in the last years and, even more so, individual differences in change in verbal learning. The sample for this study comes from the Zurich Longitudinal Study on Cognitive Aging (ZULU; Zimprich et al., 2008a Zimprich, D., Martin, M., Kliegel, M., Dellenbach, M., Rast, P. and Zeintl, M. 2008a. Cognitive ability structure in old age: First results from the Zurich Longitudinal Study on Cognitive Aging. Swiss Journal of Psychology, 67: 177–195. [Crossref], [Web of Science ®] , [Google Scholar]) and comprised 336 older adults in the age range of 65–80 years at first measurement occasion. In order to address change in verbal learning we used a latent change model of structured latent growth curves to account for the non-linearity of the verbal learning data. The individual learning trajectories were captured by a hyperbolic function which yielded three psychologically distinct parameters: initial performance, learning rate, and asymptotic performance. We found that average performance increased with respect to initial performance, but not in learning rate or in asymptotic performance. Further, variances and covariances remained stable across both measurement occasions, indicating that the amount of individual differences in the three parameters remained stable, as did the relationships among them. Moreover, older adults differed reliably in their amount of change in initial performance and asymptotic performance. Eventually, changes in asymptotic performance and learning rate were strongly negatively correlated. It thus appears as if change in verbal learning in old age is a constrained process: an increase in total learning capacity implies that it takes longer to learn. Together, these results point to the significance of individual differences in change of verbal learning in the elderly.     

Metabolic Syndrome and Cognitive Function in Healthy Middle-Aged and Older Adults without Diabetes

ABSTRACT

Objective: Few studies have addressed whether the metabolic syndrome (MetS) and its individual components are associated with cognitive function in middle-aged and older populations, as well as whether specific areas of cognition are more affected than others. We examined the cross-sectional association between MetS and six areas of cognitive function in healthy cognitively intact adults without diabetes (n?=?853, mean age 61 years) randomized in two intervention trials. Methods: The National Cholesterol Education Program (NCEP) criteria were used to identify subjects with MetS. Cognitive function was assessed with a neuropsychological battery. A principal components analysis was used to extract five uncorrelated factors interpreted to represent five areas of cognition, and a measure of global cognition was calculated. Results: MetS was weakly but non-significantly associated with lower verbal learning (β?=??.14 [SE(β)?=?0.09], p?=?.15). As the number of MetS criteria increased, scores on global cognition (p trend?=?.01), verbal learning (p trend?=?.06) and semantic memory (p trend?=?.04) decreased. Hypertension was the only MetS risk factor that was independently correlated with lower verbal learning (β?=??.17 [SE(β) =?0.08], p?=?.04), semantic memory (β?=??.26 [SE(β)?=?0.08], p?=?.001) and global cognition (β?=??.15 [SE(β)?=?0.07], p?=?.04). Conclusion: This study adds to the evidence of an association between MetS and lower cognitive function among healthy middle-aged and older adults without CVD and diabetes, as well as confirms the correlation between hypertension and lower cognition.     

Step Two: What Do You Want the Older Adult Ministry Program to Accomplish?

SUMMARY

What is the purpose for an older adult ministry within a congregation? It is not a program but a process of spiritual care, spiritual development, and spiritual formation as older adults are confronted with challenges to their spiritual perspectives due to the changes inherent in the process of aging. The experience of aging is a teacher that can be denied only with great peril to the person. Various views of aging as a spiritual journey are shared. The support and guiding of the spiritual perspectives of older adults is the core purpose for an older adult ministry in a congregation. This central purpose must be overtly expressed through the writing of a mission statement for older adult ministry that will be a yardstick not only for evaluating present ministries but also for guiding their future efforts. A simple, easy-to-use method of developing a mission statement is shared.     

The Cognitive Status of Older Adults: Do Reduced Time Constraints Enhance Sequence Learning?

Abstract

Research has indicated that older adults perform movement sequences more slowly than young adults. The purpose of the present experiment was to compare movement sequence learning in young and older adults when the time to perform the sequence was extended, and how the elderly’s cognitive status (Montreal Cognitive Assessment [MoCA]) interacted with sequence learning. The task was to minimize the difference between a target sequence pattern and the sequence produced by elbow extension-flexion movements. On Day 1, participants (28 young adults; 28 older adults) practiced the sequence under two time windows: 1300?ms or 2000?ms. On Day 2, retention performance and the cognitive status were assessed. The results demonstrated that young adults performed superior compared to older adults. Additional time to perform the sequence did not improve retention performance for the older adults. The correlation between the error score and the MoCA score of r = –.38 (p < .05) in older adults indicated that a better cognitive status was associated with performance advantages in sequence learning.     

Effects of body mass index and education on verbal and nonverbal memory

We previously reported that higher education protects against executive dysfunction related to higher body mass index (BMI) in younger, but not older, adults. We now extend the previous analyses to verbal and nonverbal memory. Fifty-nine healthy, dementia-free community-dwelling adults ranging in age from 18 to 81 years completed the Hopkins Verbal Learning Test – Revised (HVLT-R) and the Brief Visuospatial Memory Test – Revised (BVMT-R). Self-reported years of education served as a proxy for cognitive reserve. We found that more highly educated individuals maintained their BVMT-R immediate recall performance across the range of BMI, but in less educated individuals, higher BMI was associated with worse performance. Our findings suggest that education may play a protective role against BMI-related nonverbal learning deficits, similar to previous reports for verbal memory and executive functioning. Results highlight the importance of considering educational background when determining the risk for BMI-related cognitive impairment in clinical settings.     

Chapter 9: A Christian Education for the Spiritual Growth of Senior Adults

SUMMARY

Spiritual maturity among older adults is not automatic. The achievement of this most significant and worthy goal is, in part, an individual's choice. However, it is assisted by the deliberate efforts of Christian education, as a church seeks to meet the needs of seniors by appealing to their life concerns. How this is done may vary, but the needs and interests of senior adults dictate that it must be done. This article provides an overview of older adults' needs as they relate to spiritual development, and then offers some general suggestions a church might consider for guiding them toward spiritual maturity.     

Self-Regulated Learning in Younger and Older Adults: Does Aging Affect Metacognitive Control?

ABSTRACT

Two experiments examined whether younger and older adults' self-regulated study (item selection and study time) conformed to the region of proximal learning (RPL) model when studying normatively easy, medium, and difficult vocabulary pairs. Experiment 2 manipulated the value of recalling different pairs and provided learning goals for words recalled and points earned. Younger and older adults in both experiments selected items for study in an easy-to-difficult order, indicating the RPL model applies to older adults' self-regulated study. Individuals allocated more time to difficult items, but prioritized easier items when given less time or point values favoring difficult items. Older adults studied more items for longer but realized lower recall than did younger adults. Older adults' lower memory self-efficacy and perceived control correlated with their greater item restudy and avoidance of difficult items with high point values. Results are discussed in terms of RPL and agenda-based regulation models.     

The impact of error frequency on errorless and errorful learning of object locations using a novel paradigm

ABSTRACT

Errorless learning (EL) is an approach in which errors are eliminated or reduced as much as possible while learning of new information or skills. In contrast, during trial-and-error???or errorful???learning (TEL) errors are not reduced and are often even promoted. There is a complex and conflicting pattern of evidence whether EL or TEL may result in better memory performance. One major confound in the extant literature is that most EL studies have not controlled for the number of errors made during TEL, resulting in a large variability in the amount of errors committed. This variability likely explains why studies on the cognitive underpinnings of EL and TEL have produced mixed findings. In this study, a novel object-location learning task was employed to examine EL and TEL in 30 healthy young adults. The number of errors was systematically manipulated, allowing us to investigate the impact of frequency of errors on learning outcome. The results showed that recall from memory was significantly better during EL. However, the number of errors made during TEL did not influence the performance in young adults. Altogether, our novel paradigm is promising for measuring EL and TEL, allowing for more accurate analyses to understand the impact of error frequency on a person’s learning ability and style.     

The Urban Church: A Healing Community for the Older Person

ABSTRACT

Significant relationships between social networks and the well-being of older persons living in cities have been reported. This paper focuses on an attempt to strengthen the social networks of at-risk older persons through linking them with church-based volunteers who provide a wide range of support services. It is argued that the success of these linkages are explained by the costs and rewards involved in the relationship, or exchange, the volunteer's perception of the distribution of resources, and the social distance separating the two. Implications for social policy and church-based ministry with older persons are discussed.     

Motor sequence learning in children with recovered and persistent developmental stuttering: preliminary findings

PurposePrevious studies have associated developmental stuttering with difficulty learning new motor skills. We investigated non-speech motor sequence learning in children with persistent developmental stuttering (CWS), children who have recovered from developmental stuttering (CRS) and typically developing controls (CON).MethodsOver the course of two days, participants completed the Multi-Finger Sequencing Task, consisting of repeated trials of a10-element sequence, interspersed with trials of random sequences of the same length. We evaluated motor sequence learning using accuracy and response synchrony, a timing measure for evaluation of sequencing timing. We examined error types as well as recognition and recall of the repeated sequences.ResultsCWS demonstrated lower performance accuracy than CON and CRS on the first day of the finger tapping experiment but improved to the performance level of CON and CRS on the second day. Response synchrony showed no overall difference among CWS, CRS and CON.Learning scores of repeated sequences did not differ from learning scores of random sequences in CWS, CRS and CON. CON and CRS demonstrated an adaptive strategy to response errors, whereas CWS maintained a high percentage of corrected errors for both days.ConclusionsOur study examined non-speech sequence learning across CWS, CRS and CON. Our preliminary findings support the idea that developmental stuttering is not associated with sequence learning per se but rather with general fine motor performance difficulties.     

Proper names and how they are learned

Abstract

Proper names function in our conceptual lives as means for denoting individuals in kinds. Kinds are denoted by common names, more precisely count nouns, and so there are important interrelations between proper names and common nouns. All of this shows up in the way we interpret proper names and employ them in everyday inferences. For example, an airline may count three passengers in relation to a single person Jane, if Jane takes three trips with the airline. Each of the three passengers is Jane, but there is only one Jane. To handle such operations we propose a theory of proper names as part of the theory of kinds. This enables us to specify certain resources (some of them unlearned) that are necessary for the learning of proper names and also a theory of how they are learned. We review the experimental literature on the learning of proper names from the standpoint of the theory. We do not extend the theory to cover recognition or recall.     

Step Three: Assessing Readiness for OAM (Older Adult Ministry)

SUMMARY

Assessing existing programs as well as the readiness of the congregation to receive new programs in the area of older adult ministry is an essential building block. An assessment of existing ministries is essential to discovering what needs to be developed. At the same time, the strengths and challenges of a congregation to develop and maintain an expanded older adult ministry is also important to assess so that starting points can be identified and needs filled. Often, the secondary gain of any congregational assessment is the ability to hear all of the voices within the congregation, help congregants to feel like they have participated in the process and to prepare them to expect something new. Tools for assessing existing programs as well as the readiness of the congregation are shared and explained.     

Spiritual,Religious, Nonspiritual,and Nonreligious Narratives in Marginalized Older Adults: A Typology of Coping Styles

SUMMARY

Narrative therapy is an important tool in the phenomenological framing of life events with older clients. Seventy-nine older adults who lived independently in four subsidized high-rise housing facilities in Chicago were interviewed in a research project about managing life challenges. Cases represent four types in a spiritual-religious typology: religious and spiritual, religious only, spiritual only, and neither religious nor spiritual (Zinnbauer, 1997). This article explores how older adults managed adversity and maintained a sense of self-efficacy. Findings indicate that older adults use many references to religion and spirituality in their narratives, either embracing these domains or defining themselves in contrast to them. Narrative therapy suggests that the implications of religious and spiritual resources addressed in client stories may reinforce coping capacity and promote aging well.     

Comparing Older and Younger Adults in an Event-Based Prospective Memory Paradigm Containing an Output Monitoring Component

ABSTRACT

Two experiments with younger and older adults were conducted to investigate the output-monitoring component of event-based prospective memory. In the standard form of the task, participants must remember to press a key when a certain class of items is encountered. To evaluate output monitoring, event-based cues were repeated and participants were asked to press a different key if they could remember that an earlier response was made to a particular cue. Younger adults forgot fewer of their successful responses, but displayed a distinct bias to claim that they had responded earlier when actually they had forgotten to respond. By contrast, older adults displayed this bias much less frequently. Elaborated responding to cues had the effect of improving the performance of younger, but not older adults. The results are discussed in terms of natural repetitions and omission errors that might be made in everyday prospective memory tasks.     

Different Effects of Dual Task Demands on the Speech of Young and Older Adults

Abstract

Young and older adults provided language samples in response to elicitation questions while concurrently performing 3 different tasks. The language samples were scored on three dimensions: fluency, grammatical complexity, and content. Previous research has shown that older adults use a restricted speech register that is grammatically less complex than young adults’ and has suggested that this restricted speech register is buffered from the costs of dual task demands. This hypothesis was tested by comparing language samples collected during a baseline condition with those produced while the participants were performing the concurrent tasks. The results indicate that young and older adults adopt different strategies when confronted with dual task demands. Young adults shift to a restricted speech register when confronted with dual task demands. Older adults, who were already using a restricted speech register, became less fluent although the grammatical complexity and informational content of their speech was preserved. Hence, some but not all aspects of older adults’ speech are buffered from dual task demands.     

Participation in Religious Education and Life Satisfaction Among Older Adults

ABSTRACT

Participation in older adult Bible study groups was investigated as a possible correlate to life satisfaction. Two hundred eighty-seven adults, 60 years of age and older, completed the Life Satisfaction in the Elderly Scale (LSES). Results of an ANCOVA indicated that participation in Bible study groups relates positively and significantly to life satisfaction in older adults when adjusted for the health variable. Older adults who participated regularly in Bible study groups scored significantly higher on the LSES than older adults who did not participate regularly in Bible study groups although they regularly attended worship services. Results suggest that religious education participation and life satisfaction may be related in such a way as to offer implications for improving quality of life in later years.     

Applying Continuity Theory to Older Adult Friendships

Continuity theory provides a rationalization for understanding older adult friendships. Older adults do not have to anticipate disengagement but can exercise their choice to actively participate in establishing and maintaining friendship structures. The role of friend is one a person can choose to maintain. Friendships are dynamic and progress on a continuum with beginnings, periods of endurance and change, and endings. Continuity theory provides ways to understand why particular people have developed and adapted distinct friendship and social support networks. This insight provides social service professionals, gerontologists, and family members ways to enable older adults to remain in their communities longer and maintain support stability.