Effort to reduce postural sway affects both cognitive and motor performances in individuals with Parkinson’s disease

ObjectivesTo assess the effects of voluntarily reducing postural sway on postural control and to determine the attention level needed to do so in healthy adults (n = 16, 65.9 ± 9.7) and persons with PD (n = 25, 65.8 ± 9.5 years). Tasks: quiet and still standing conditions with and without a category task. Cognitive performance, center of pressure (CoP) displacement variability (RMSCoP) and velocity (VCoP) were assessed in the anterior-posterior (AP) and medial-lateral (ML) directions.Controls showed larger RMSCoP (AP) and VCoP (AP and ML) during still versus quiet standing (p < 0.01), while the PD group demonstrated no changes. In the PD group, RMSCoP and VCoP (ML) increased in still standing when performed with the cognitive task (p < 0.05). In both groups, cognitive responses decreased in still standing (p < 0.05).In PD, attempting to reduce postural sway did not affect postural control under single task conditions, however ML CoP variability and velocity did increase as a dual task. In older adults, increased displacement and velocity in both AP and ML directions was observed during single, but not dual task conditions. Therefore standing still might not be an adequate postural strategy as it increases the attentional demand and affects motor performance, putting persons with PD at greater risk for falls.     

Clients’ experiences of dynamic interpersonal therapy (DIT): opportunities and challenges for brief,manualised psychodynamic therapy in the NHS

Dynamic interpersonal therapy (DIT) is a brief manualised psychodynamic intervention for depression. This is a first study exploring clients’ experiences of DIT specifically and brief, manualised psychodynamic psychotherapy (PP) in general. Interpretative phenomenological analysis was the methodology employed. Five participants completed a semi-structured interview, three weeks to ten months after completing DIT. The scores of pre- and post-therapy outcome measures of depression and anxiety were also available. Two emerging superordinate themes are presented here: (1) ‘The Distinct Features of DIT’, referring to how its therapeutic style and time limitations were experienced and (2) the ‘Impact of Therapy’, referring to perceived outcomes. While previous findings showed that therapist’s perceived limited activity in long-term PP was experienced as hindering/unhelpful, the perceived sense of direction in DIT appeared adequate to most participants. Secondly, the time limitations provoked complex responses. Reactions to the distinct elements of DIT are to be treated both as therapeutic opportunities and as challenges. Further, in line with psychoanalytic theory, most participants described relational changes that went beyond symptom relief and remained in progress after therapy ended. Intriguingly, there was no consistency between participants’ qualitative accounts of change and the scores of the outcome measures.     

Salespersons’ empathy as a missing link in the customer orientation–loyalty chain: an investigation of drivers and age differences as a contingency

Salespersons’ customer orientation has attracted considerable attention from practitioners and researchers. By distinguishing customer-oriented attitude from behavior, this study sheds light on customers’ perceptions of salespersons’ empathy, as a missing link between customer orientation and customer-related outcomes. Noting the increasing age diversity among salespersons and customers, this study also investigates whether age differences in salesperson–customer dyads moderate the relationships of salespersons’ customer-oriented attitude and behavior with customer outcomes. Finally, this study examines salespersons’ climate perceptions as antecedents of their customer-oriented attitudes. Results of multilevel modeling with data from 164 salespersons and 405 customers reveal that salesperson empathy, as perceived by customers, is an important facilitator of the customer orientation–satisfaction relationship. When there are large age differences, salespersons’ customer-oriented attitude becomes more important for making customers feel understood by salespersons. Regarding antecedents, salespersons’ customer-oriented attitude is influenced by their perceptions of team-member exchange and age-inclusive climate.     

A pilot study of women’s affective responses to common and uncommon forms of aerobic exercise

Objective: To test the extent to which participants exposed to an uncommon versus common exercise stimulus would result in more favourable affect at post-task.

Design: Experimental design. Participants (N = 120), American women aged 18–45 years, were randomly assigned to complete 30-min of either the uncommon (HOOP; n = 58) or common (WALK; n = 62) exercise stimulus.

Main outcome measures: Self-reported affect and intentions for future exercise were measured before and after the 30-min exercise bout.

Results: Analyses of covariance were run to compare post-task affect across the HOOP and WALK conditions. At post-task, participants assigned to HOOP reported more positively valenced affect, higher ratings of positive activated affect, lower ratings of negative deactivated affect, and stronger intentions for future aerobic exercise compared to participants assigned to WALK.

Conclusions: Participants who completed an uncommon bout of aerobic exercise (HOOP) reported more favourable affect post-exercise, as well as stronger intentions for future exercise, compared to participants who completed a common bout of aerobic exercise (WALK). Future work using a longitudinal design is needed to understand the relationships between familiarity with an exercise stimulus, affective responses to exercise, motivation for future exercise behaviour and exercise maintenance over time.     

Checking the heavenly ‘bank account of karma’: cognitive metaphors for karma in Western perception and early Theravāda Buddhism

To visualize the accumulation of good and bad karma in terms of credit or debt in a bank account is a common feature in works on Buddhism and other Indian traditions. Applying conceptual metaphor theory, this article tracks the metaphorical framework of understanding karma as a kind of ‘heavenly bank account’ back to its roots in early European scholarship. Based on a comparison with metaphors for karma to be found in Pāli texts of the Theravāda tradition, namely, the analogies of ripening, inheritance, and the dark/bright dichotomy, this article argues that the ‘bank-account’ imagery differs in significant – if subtle – respects from these emic metaphors, displaying certain Judeo-Christian preconceptions of moral bookkeeping, sin, and salvation.     

The clinical utility of the auditory P300 latency subcomponent event-related potential in preclinical diagnosis of patients with mild cognitive impairment and Alzheimer’s disease

The present meta-analysis investigated the clinical utility of the auditory P300 latency event-related potential in differentiating patients with Alzheimer’s disease (AD), patients with mild cognitive impairment (MCI), and unaffected controls. Effect size estimates were computed from mean P300 latency measurements at midline electrodes between patients and unaffected controls using the random effects restricted maximum likelihood model. The effects of clinical and ERP/EEG methological variables were assessed in a moderator analysis. P300 latency was found to be significantly prolonged in patients with AD (and MCI) compared to unaffected controls. Shortened P300 latencies were observed when comparing patients with MCI to patients with AD. Clinically relevant differences in P300 latency effect sizes were associated with mean age, interstimulus interval, stimulus difference, target frequency, reference electrode, and sampling rate. The meta-analytic findings provide robust statistical evidence for the use of the auditory P300 latency subcomponent as a biological marker of prodromal AD.     

Fitts’ Theorem in Oculomotor Control: Dissociable Movement Times for Amplitude and Width Manipulations

The authors examined whether movement times (MT) for discrete saccades are constant given equivalent index of difficulty (ID) values (i.e., unitary nature of Fitts’ theorem). To that end, we contrasted ID/MT relations for saccades equated for ID but differing with respect to their target amplitudes and widths. Results showed that MT increased with increasing ID within amplitude and width conditions; however, the ID/MT slope was markedly steeper in the former condition. Thus, the amplitude condition imposed greater information processing demands than the width condition—a result indicating that the constituent elements of Fitts’ theorem are dissociable (i.e., nonunitary). Further, examination of saccade kinematics demonstrated that the optimal MT for a given target amplitude was largely independent of target width.