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1.
Cognitive research on the plasticity of fluid intelligence has demonstrated that older adults benefit markedly from guided practice in cognitive skills and problem-solving strategies. We examined to what degree older adults are capable by themselves of achieving similar practice gains, focusing on the fluid ability of figural relations. A sample of 72 healthy older adults was assigned randomly to three conditions: control, tutor-guided training, self-guided training. Training time and training materials were held constant for the two training conditions. Posttraining performances were analyzed using a transfer of training paradigm in terms of three indicators: correct responses, accuracy, and level of item difficulty. The training programs were effective and produced a significant but narrow band of within-ability transfer. However, there was no difference between the two training groups. Older adults were shown to be capable of producing gains by themselves that were comparable to those obtained following tutor-guided training in the nature of test-relevant cognitive skills.  相似文献   

2.
The original validation study for the Montreal Cognitive Assessment (MoCA) suggests a cutoff score of 26; however, this may be too stringent for older adults, particularly for those with less education. Given the rapidly increasing number of older adults and associated risk of dementia, this study aims to provide appropriate age- and education-adjusted norms for the MoCA. Data from 205 participants in an ongoing longevity study were used to derive normative data. Individuals were grouped based on age (70–79, 80–89, 90–99) and education level (≤12 Years, 13–15, ≥16 Years). There were significant differences between age and education groups with younger and more educated participants outperforming their counterparts. Forty-six percent of our sample scored below the suggested cutoff of 26. These normative data may provide a more accurate representation of MoCA performance in older adults for specific age and education stratifications.  相似文献   

3.
Deceptive behavior in primates has been the focus of a number of studies. Nevertheless, such abilities have never been demonstrated in prosimians. The authors' goal was to analyze possible deception in lemurs according to a paradigm used with simians. Three black lemurs were trained to communicate about the location of a hidden reward with a cooperative trainer. Afterward, when a 2nd trainer and lemurs competed to gain access to the reward, each subject differentially adapted its learned behavior to the context. Their performances with the cooperative trainer remained stable while they showed various behavioral adjustments when faced to the competitive trainer: 1 subject refused to participate, another preferentially withheld information, and the 3rd sometimes pointed deceptively to obtain the reward.  相似文献   

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5.
T. Dalgleish and M. J. Power (see record 2004-15929-012) suggest that J. A. Lambie and A. J. Marcel's (2002) article implicitly presents a unitary view of self in emotion experience and propose that certain clinical phenomena require multiple selves. This reply summarizes Lambie and Marcel's usages of the term self and examines both Dalgleish and Power's gloss of these and their own usages. This indicates that their own central usage of the term misrepresents Lambie and Marcel and is itself an improper usage. More important, examination of the phenomena claimed to require multiple selves suggests that they do not and that Dalgleish and Power may have misread the relevant clinical literature. Finally, Lambie and Marcel's own conception of dissociative phenomena and multiple selves are outlined, and alternative approaches are sketched. In discussing the usages of the term self and interpretation of cognitive and affective disorders, this reply attempts to clarify certain confusions.  相似文献   

6.
To determine whether older adults find it difficult to inhibit the processing of irrelevant speech, the authors asked younger and older adults to listen to and repeat meaningless sentences (e.g., "A rose could paint a fish") when the perceived location of the masker (speech or noise) but not the target was manipulated. Separating the perceived location (but not the physical location) of the masker from the target speech produced a much larger improvement in performance when the masker was informational (2 people talking) than when the masker was noise. However, the size of this effect was the same for younger and older adults, suggesting that cognitive-level interference from an irrelevant source was no worse for older adults than it was for younger adults.  相似文献   

7.
ABSTRACT

Mild functional difficulties associated with cognitive aging may be reliably measured by coding “micro-errors” during everyday tasks, like meal preparation. Micro-errors made by 25 older adult and 48 younger adults were coded on four dimensions to evaluate the influence of: 1) poor error monitoring; 2) goal decay; 3) competition for response selection when switching to a new subtask; and 4) interference from distractor objects. Micro-errors made by young adults under a dual task load also were analyzed to determine the influence of overall performance level. Older adults’ micro-errors were observed when switching to a new subtask and to unrelated distractors. Slowed error monitoring and goal decay also influenced micro-errors in older adults, but not significantly more so than younger adults under the dual task. Interventions to reduce interference from distractors and to increase attention at critical choice points during tasks may optimize everyday functioning and preclude decline in older adults.  相似文献   

8.
Older adults perform worse than younger adults when applying decision rules to choose between options that vary along multiple attributes. Although previous studies have shown that general fluid cognitive abilities contribute to the accurate application of decision rules, relatively little is known about which specific cognitive abilities play the most important role. We examined the independent roles of working memory, verbal fluency, semantic knowledge, and components of executive functioning. We found that age-related decline in applying decision rules was statistically mediated by age-related decline in working memory and verbal fluency. Our results have implications for theories of aging and decision-making.  相似文献   

9.
This pilot study summarizes perceived barriers to bicycling among overweight adults in two low-income communities of color and evaluates the impact of a bicycling intervention on these perceived barriers. A randomized controlled trial with 38 total participants from one predominantly Latino and one predominantly Black neighborhood in Milwaukee, Wisconsin was conducted during summer 2015. The twelve-week intervention consisted of group bicycle rides and bicycling instruction. Several barriers identified prior to the intervention declined significantly among intervention group members soon after it was completed: not feeling healthy enough to bike, being physically uncomfortable while biking, not having a bicycle to use, not having other people to bicycle with, not knowing the best routes to use, not feeling safe from crime, not feeling safe from car traffic, and worrying that neighbors do not think it is normal for an adult to ride a bike. Eight weeks after completion, the intervention group reported significantly greater reductions than the control group with respect to the barriers of not feeling healthy enough to bike and not feeling safe from car traffic. In addition to decreasing barriers, qualitative analysis suggested that increasing support from family and friends as well as emphasizing personal health benefits could help motivate people to bicycle.  相似文献   

10.
Within this paper we examine the nature and characteristics of the concept of unconditional positive regard (UPR) and discuss how an experience of conscious identification (CI) within a person-centred counsellor may affect its levels and manifestations. Initially, theoretical aspects of UPR are examined, with reference to potential threats or benefits to UPR when a counsellor experiences CI. Following on from this, we discuss how this may affect practice, drawing upon data generated from a 4-year research study, which defined and examined the process of CI.  相似文献   

11.
The present set of studies examined the impact of intentionality (wanting/not wanting to get sick) on the transmission of contagious illness and injuries. Study 1 examined whether preschoolers and adults thought that a recipient of an illness is more likely to get sick if he/she wanted to. Studies 2, 2a, and 3 examined if the intentions of the transmitter would influence the transmission of illness to the recipient. Study 4 examined the influence of germs on intentionality. Both preschoolers and adults reasoned that the intentions of the recipient would play a significant role in the probability of contracting an illness but only adults reasoned that the recipient having knowledge of the transmitter's intentions would have an impact on illness. Moreover, preschoolers (but not adults) judged that biological contaminants such as germs would interact with the intentionality of the recipient to increase the chances of contracting an illness whereas adults reasoned that psychological states can have a direct influence on the manifestation of illness. These results suggest that preschoolers and adults entertain a highly sophisticated and selective process when assessing, the impact of psychological factors such as intentionality on biological processes such as the origins of illness.  相似文献   

12.
As they observe or produce events, infants identify variables that help them predict outcomes in each category of events. How do infants identify a new variable? An explanation-based learning (EBL) account suggests three essential steps: (1) observing contrastive outcomes relevant to the variable; (2) discovering the conditions associated with these outcomes; and (3) generating an explanation for the condition-outcome regularity discovered. In Experiments 1-3, 9-month-old infants watched events designed to "teach" them the variable height in covering events. After watching these events, designed in accord with the EBL account, the infants detected a height violation in a covering event, three months earlier than they ordinarily would have. In Experiments 4-6, the "teaching" events were modified to remove one of the EBL steps, and the infants no longer detected the height violation. The present findings thus support the EBL account and help specify the processes by which infants acquire their physical knowledge.  相似文献   

13.
A self‐determination theory process model of change in well‐being was tested among older adults in a 16‐week randomized exercise‐trial (n = 118, M = 74.3 years, SD = 4.6, 68% females). The exercise intervention increased participants' autonomous motivation and perceived competence over the first 7 weeks. Moreover, autonomous orientation gave rise to perceived competence, while impersonal orientation was related to increased controlled motivation. Changes in motivational variables were positively related to changes in vitality over the trial, while change in controlled motivation was negatively related to changes in vitality and subjective well‐being. Bootstrapping analyses supported an indirect exercise–vitality path through autonomous motivation and perceived competence, and an indirect autonomous orientation–vitality path through perceived competence.  相似文献   

14.
The attention training technique (ATT) is a cognitive treatment method that is aimed at ameliorating intrusive thoughts in anxiety disorders. To the best of our knowledge, no randomized controlled study has yet been conducted on individuals with obsessive–compulsive disorder (OCD). For the present study, we recruited 80 participants with OCD over the internet and allocated them to an experimental (ATT implemented as bibliotherapy) or a wait-list condition. Assessments were made at baseline and four weeks later. Groups performed similar at both time points on the self-report version of the Yale-Brown Obsessive Compulsive Scale (Y-BOCS) and the Obsessive Compulsive Inventory-revised (OCI-R). The present study speaks against the effectiveness of ATT as a stand-alone bibliotherapeutical approach for OCD. From our data and increasing evidence that OCD patients do not suffer from severe attention or executive deficits we consider an approach targeting attentional biases for certain OCD-related events more useful than a generic (i.e., OCD-unspecific) cognitive remediation approach.  相似文献   

15.
Individuals often have low rates of compliance with treatment recommendations. We examined the role that experienced affect at the time of illness diagnosis might play in influencing thoughts and feelings relating treatment compliance. Participants were randomly assigned to receive a positive, neutral, or negative affect induction after imagining they were diagnosed with kidney cancer. They then reported on thoughts and feelings about the illness and the treatment regimen. Participants also reported interest in additional information about the illness and behavioral intentions for complying with the treatment regimen. Affect significantly influenced interest in information and behavioral intentions. Both effects were mediated by the influence of affect on participants' self-efficacy beliefs. These mediational findings support a mood-as-resource interpretation of the role of affect in treatment compliance.  相似文献   

16.
Eight squirrel monkeys (Saimiri sciureus) were presented with 2 stimulus arrays, namely 1 and 4 pieces of food, but they received only the array other than the one they reached for. In this reverse-reward condition, all monkeys initially showed a strong preference for the larger array. One monkey learned to reach toward the smaller array when a large-or-none reward contingency was applied (i.e., no reward followed a reach toward the larger array, but this array was given for a reach toward the smaller array). When correction trials and time-out were added to the large-or-none procedure, all remaining monkeys except 1 learned this form of self-control. Performance was maintained when correction trials were discontinued, the original reverse-reward condition was rerun, and novel array-size pairs were presented. This study demonstrates one form of self-control in a New World primate and shows the reverse-reward procedure to be a potentially valuable method for assessing species and individual differences in self-control and numerosity-related abilities.  相似文献   

17.
Threatening facial expressions like anger can signal potential danger. Past research has established that both adults and children have an attentional bias for angry faces, visually detecting their presence more quickly than happy or neutral faces. More recent research has suggested that specific features of angry faces (such as the downward-pointing “V” shaped brow) are the effective stimulus in their rapid detection. However, research examining this issue has only been done with adults. In the current research, we examine the detection of the features of the downward-pointing “V” in both adults and preschool children using a touchscreen visual search procedure. In two experiments, both adults and children detected the downward-pointing “V” more quickly than an upward-pointing “V”. As the first evidence that young children exhibit the same superior detection of the features of threatening facial expressions that adults do, this research provides important support for the existence of an evolved attentional bias for threatening stimuli.  相似文献   

18.
This study sought to understand how practitioners perceive and experience the Circle of Security-Parenting (COS-P) training, and further, how they integrate and implement it into practice, and how these experiences influence their use and understanding of the program and its underlying model. A thematic analysis of semistructured interviews at two time points (shortly after training and 3–6 months after training) was used to explore 12 practitioners’ experiences of COS-P training and subsequent implementation. Three main themes were identified; clinical salience, personal salience, and partial use of the program. The findings reflected participants’ common perception that the model is relevant and generalizable to a wide variety of contexts. It also highlighted potential barriers to implementation, particularly practitioners’ experiences using only components of the COS-P program in isolation. The results suggest practitioners’ assumptions about client complexities, vulnerabilities, and/or incapacities, can prompt practitioners to withhold the use of COS-P (in part or whole), thereby potentially neglecting key components required for client change. The only participants who implemented the COS-P training in full had additional training in Circle of Security.  相似文献   

19.
This study examined whether TIGER (“Kanjertraining” in the Netherlands) reduces psychosocial problems in eight- to eleven-year-olds in a mental health-care setting. TIGER is a cognitive behavioural intervention in the peer group, with an additional parent component. Characterizing features include the emphasis on affirming children's prosocial intentions and feelings of responsibility for their own behaviour. To study effectiveness in routine daily practice, a quasi-experimental design with 185 intervention and 39 waiting list control children was used. Results indicated that TIGER significantly reduced externalizing and internalizing problems. Children with clinical-level internalizing problems at pretest benefited more from TIGER than children with subclinical or nonclinical internalizing problems. Effect sizes (between .33 and .46) were in the small to medium range and comparable to behavioural parent-training and cognitive-behavioural therapy. Future interesting topics to study are the long-term effects of TIGER and mechanisms of change.  相似文献   

20.
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