Word List Generation Performancein Alzheimer's Disease and Vascular Dementia

Word list generation (WLG) was examined among clinical samples of individuals with Alzheimer's disease (AD) (n = 73) or ischemic vascular dementia (IVD) (n = 85), equivalent in age, education, current and estimated premorbid intellectual functioning, and proportion of men and women. The AD group performed significantly better than did the IVD group on lexical WLG, and a trend was observed indicating superior performance among the IVD group on categorical WLG. Within-groups, comparisons of group means, and profile analyses of individual performance patterns all indicated that persons with AD demonstrated a lexical > categorical pattern significantly more often than did IVD participants. The absolute difference in average performance between the AD and IVD groups on lexical and categorical WLG was small; the findings, however, generally support the clinical utility of the lexical > categorical WLG pattern in the differential diagnosis of AD and IVD. The patterns of performance support the presence of relative impairment in semantic processing among the individuals with AD and global deficits in retrieval and processing speed in individuals with IVD.     

Win-shift and win-stay learning in the rainbow lorikeet (Trichoglossus haematodus)

The tendency to win-shift (to better learn to avoid, rather than return to, recently rewarded locations) has been demonstrated in a variety of nectarivorous birds and in honeybees. It is hypothesized to be a cognitive adaptation to the depleting nature of nectar. In the present study we report the first attempt to test for a win-shift bias in a nectarivorous parrot, the rainbow lorikeet (Trichoglossus hematodus). This species differs from others tested for a win-shift bias in that it is a facultative, rather than an obligate, nectarivore. We tested a captive-reared population of the birds on a shift/stay task at long and short retention intervals. The data show no evidence of either a win-shift or a win-stay bias. The birds demonstrated efficient spatial search ability and above chance performance for both shift and stay contingencies at long and short delays. These data suggest that an innate tendency to win-shift may not be present in all avian nectarivores, or that the role experience plays in shaping such behaviors is different for different species.     

Selective spatial processing deficits in an at-risk subgroup of the fragile X premutation

Until a decade ago, it was assumed that males with the fragile X premutation were unaffected by any cognitive phenotype. Here we examined the extent to which CGG repeat toxicity extends to visuospatial functioning in male fragile X premutation carriers who are asymptomatic for a late-onset neurodegenerative disorder, fragile X-associated tremor/ataxia syndrome (FXTAS). Thirty-three premutation males aged 20-68 years [divided into two groups: 16 low-repeat carriers (CGG ≥ 55 ≤ 100) and 17 high-repeat carriers (CGG>100)] with a family history of fragile X syndrome and 62 non-affected adult males with normal FMR1 alleles were recruited. Subjects underwent neuropsychological tests of visuospatial and visual working memory functioning and visuoperceptual processing. On measures of visuospatial processing, the high-repeat carriers performed significantly worse than the normal allele group when age and IQ were covaried out. With increasing age and only in carriers of a larger (>100 repeats) premutation allele was there a greater decrement in visuospatial working memory functioning. Performance on spatial and perceptual judgement tasks failed to show similar specificity in males within the upper premutation range. We conclude that identification of selective visuospatial impairments in carriers of a larger premutation allele indicates greater CGG repeat toxicity in specific neural regions. Longitudinal follow-up studies will be needed to determine whether subtle decline in visuospatial functioning is associated with the later onset of motor symptoms of FXTAS.     

Towards a More Plausible Exemplification Theory of Events

Among the most well-known accounts of events is Jaegwon Kim’s exemplification theory, which identifies each event with a property exemplification (often modeled as an “ordered triple” of an entity, property type, and time). Two of the most influential rival event theorists (Lawrence Lombard and Jonathan Bennett) have urged rejecting exemplificationism on the basis of the charge that it ultimately conflates events with facts [Lombard (1986): Events: A Metaphysical Study. Routledge & Kegan Paul; Bennett (1988):Events and their Names. Hackett Publishing Company]. In response, I offer a detailed examination of Lombard and Bennett’s arguments that exemplificationism undermines the event/fact distinction. I then develop and defend a modified version of Kim’s account that overcomes this objection, and so constitutes a more plausible exemplification theory of events.     

TRAINING FUNCTIONAL EXPRESSIVE LANGUAGE: THE ACQUISITION AND GENERALIZATION OF FIVE-ELEMENT SYNTACTIC RESPONSES1

A single-subject multiple-baseline design using within- and across-subject replication was employed to study the acquisition of expanded “agent-action-object” sentences and the spontaneous generation of this form in the natural environment. Three young language-delayed subjects were trained to describe various agent-action-object relationships with a five-element syntactical form. The language training strategy was a synthesis of the developmental-psycholinguistic and behavioral models. Dynamic interactions between familiar persons and objects were the stimulus events that the children mapped. A five-element syntactical form, previously absent from the children's language repertoires, was trained during individual sessions. Concurrent with baseline, training, and followup, each subject's language was monitored in another setting, the classroom during free play. After onset of training, the core elements of the complex syntactic form were spontaneously emitted by the child in its natural environment. The free-play data reflect individual differences in the emergence and frequency of each child's spontaneous use of the agent-action-object form. The acquisition and maintenance of the specific lexicon and syntax trained were tested by posttraining probes and responses to videotape presentations. These probes revealed generalization and maintenance of both the lexical and syntactical forms acquired in treatment. The main purpose of any language-training procedure should be to provide language that is functional for the child in the natural environment. This study, which documented the spontaneous usage of the core agent-action-object syntactical form in the natural environment, effectively trained a functional syntactical rule.     

Dispositional inference from effects of actions: Effects chosen and effects forgone

One hundred and forty-six subjects made comparative judgments as to which of two hypothetical actors they were most confident possessed a choice-related trait, and which was most extreme on that trait dimension. Each actor was portrayed as making a choice from a set of actions; the choice sets varied independently in the number of effects eliminated by the choice and in the number of effects remaining after choice. Results confirmed Jones and Davis' (1965) hypothesis that correspondence would be inversely related to the number of effects remaining after choice. In addition, correspondence was directly related to number of effects eliminated by the choice when effects remaining did not differ. When given both sources of information, subjects preferred to use information from effects remaining.     

Human figure drawing size as a measure of self-esteem

The relationship between self-esteem and human figure drawing size was investigated. Seventy-six adolescents completed the Rosenberg Self-Esteem Scale and drew the human figure. For males only. there was a significant linear relationship between self-esteem and width of human figure drawing and a significant curvilinear relationship between self-esteem and height and self-esteem and area of human figure drawing. The latter findings lend support to a hypothesis regarding the possibility among low self-esteem subjects of a bimodal distribution with respect to size.     

Pastoral care in tertiary education: Experiences of lecturers helping students in distress at new university

Lecturers in tertiary education are often called upon to offer support to distressed students. The vast majority of lecturers have little or no training in appropriate helping methods. As a first step towards the eventual provision of such training in higher education, a survey has been conducted on a selection of departments within the University of Portsmouth. The responses (50% of those sent out) gave details of the frequency and nature of lecturers' provision of personal help or informal counselling for students in distress. The results show that the incidence of helping students in distress appears to be vey high with 94% of respondents having advised one or more distressed students in the last year. Findings are discussed, along with consideration of future directions for this research.     

A Qualitative Investigation of Student and Supervisor Perceptions of Live Supervision in Genetic Counseling

Live supervision of genetic counseling students is critical for ensuring quality client care and student clinical skill development. However, no research has investigated students' and supervisors' experience of this primary supervision method. In this study, separate focus groups of students and supervisors discussed their perceptions of the nature and impact of live supervision. A modified Consensual Qualitative Research method (Hill et al. (1997) Couns Psychol 25:517–572) was used to analyze the data. Results suggest that live supervision is an essential and effective method that promotes student skill development and professional development for both students and supervisors. There is a lack of formal training regarding supervision; most learning is trial and error. Students worry about being evaluated, and supervisors wonder if they are providing supervision effectively. Both samples emphasized that client care should not be compromised. Participant recommendations for improving live supervision are described, and suggestions are made for future research.     

Three Rs of Interpersonal Consumer Guilt: Relationship,Reciprocity, Reparation

This article explores the role of consumer guilt in a retail context. The results of a field study indicate that a consumer's lack of purchase can lead to a guilt response when social connectedness with a salesperson exists and the consumer perceives he or she has control over the purchase decision. A subsequent laboratory study established that when consumers experience guilt, they intend to pursue reparative actions during future purchase interactions with the salesperson to reciprocate the initial connection they established. This reparation is directed specifically toward the salesperson and not the firm.