Lateral specialization in unilateral spatial neglect: a cognitive robotics model

In this paper, we present the experimental results of an embodied cognitive robotic approach for modelling the human cognitive deficit known as unilateral spatial neglect (USN). To this end, we introduce an artificial neural network architecture designed and trained to control the spatial attentional focus of the iCub robotic platform. Like the human brain, the architecture is divided into two hemispheres and it incorporates bio-inspired plasticity mechanisms, which allow the development of the phenomenon of the specialization of the right hemisphere for spatial attention. In this study, we validate the model by replicating a previous experiment with human patients affected by the USN and numerical results show that the robot mimics the behaviours previously exhibited by humans. We also simulated recovery after the damage to compare the performance of each of the two hemispheres as additional validation of the model. Finally, we highlight some possible advantages of modelling cognitive dysfunctions of the human brain by means of robotic platforms, which can supplement traditional approaches for studying spatial impairments in humans.     

Motor Improvement Using Motion Sensing Game Devices for Cerebral Palsy Rehabilitation

The authors aimed to investigate the effects of an intervention based on interactive game set with the movement sensor Kinect on children with cerebral palsy (CP). Twenty-eight participants were recruited. Their age was between 3 and 12 years old, and rated as level I, II, or III on the Gross Motor Function Classification System. They played two games from the Xbox 360 Kinect system and were evaluated using the Gross Motor Function Measure (GMFM) after a period of 8 weeks. The intervention led to significant motor function improvement as increase of the global scores on the GMFM (p < .001). Rehabilitation interventions using the Xbox 360 Kinect interactive games may represent useful tools for children with CP.     

Sit Down and Play: A Preventive Primary Care-Based Program to Enhance Parenting Practices

The primary care office offers an ideal setting to encourage parenting behaviors that promote early childhood development. We conducted a pilot study to establish feasibility and acceptability of Sit Down and Play (SDP), a brief primary care-based program to facilitate positive parenting behaviors through take-home play activities. A prospective 1-month study was conducted in an urban primary care clinic. SDP was administered to 30 caregivers of 6–12 month-old children while they waited for their well-child appointment. Caregivers completed baseline and 4-week follow-up surveys. Open-ended interview questions regarding acceptability and usefulness of SDP were administered and analyzed using content analysis. Parenting practices related to child development were measured with standardized measures and changes analyzed using paired t-test and linear mixed effects models. Most caregivers were mothers (90?%) and non-white (97?%); the majority of children received Medicaid (87?%). There were significant increases in parental reports of practices related to child development (p?<?0.001), including families who reported low incomes (i.e. <$25,000) and received a high-school education or less (p?=?0.001). Four main themes emerged from the open-ended interview data: (1) importance of play, (2) noticing a change in their child, (3) reinforcing existing positive parenting behaviors, and (4) satisfaction with the program. This preliminary study suggests that SDP is a feasible and potentially beneficial program that can be delivered during pediatric well-child visits. Further studies are needed to determine the effectiveness of SDP on parenting behaviors and developmental outcomes.     

Keeping up day-specific effects of transformational leadership: the role of followers’ emotion regulation

This diary study examines the role of day-specific transformational leadership for followers’ personal initiative. Building on Affective Events Theory, we proposed a direct effect of day-specific transformational leadership on followers’ personal initiative on the same day. Furthermore, we took a closer look at lagged effects of day-specific transformational leadership. More specifically, we hypothesized that positive effects of one day’s transformational leadership can endure until the next day for followers who apply beneficial emotion regulation strategies. We conducted a diary study over five consecutive working days among 97 employees. Two-level hierarchical linear modelling supported our hypotheses. As expected, day-specific transformational leadership positively predicted followers’ personal initiative on the same day. Furthermore, concerning the association between day-specific transformational leadership and followers’ personal initiative on the following day, there was a positive relation for followers applying beneficial emotion regulation strategies in terms of high cognitive reappraisal and low expressive suppression, respectively.     

Romantic red: red enhances men's attraction to women

In many nonhuman primates, the color red enhances males' attraction to females. In 5 experiments, the authors demonstrate a parallel effect in humans: Red, relative to other achromatic and chromatic colors, leads men to view women as more attractive and more sexually desirable. Men seem unaware of this red effect, and red does not influence women's perceptions of the attractiveness of other women, nor men's perceptions of women's overall likeability, kindness, or intelligence. The findings have clear practical implications for men and women in the mating game and, perhaps, for fashion consultants, product designers, and marketers. Furthermore, the findings document the value of extending research on signal coloration to humans and of considering color as something of a common language, both within and across species.     

Personality, political skill, and job performance

Based on the socioanalytic perspective of performance prediction [Hogan, R. (1991). Personality and personality assessment. In M. D. Dunnette, L. Hough, (Eds.), Handbook of industrial and organizational psychology (2nd ed., pp. 873–919). Chicago: Rand McNally; Hogan, R., & Shelton, D. (1998). A socioanalytic perspective on job performance. Human Performance, 11, 129–144.], the present study tests whether motives to get along and to get ahead produce greater performance when interactively combined with social effectiveness. Specifically, we investigated whether interactions of the Five-Factor Model constructs of agreeableness and conscientiousness with political skill predict job performance. Our results supported our hypothesis for the agreeableness-political skill interaction. Additionally, after correcting for the unreliability and restricted range of conscientiousness, we found that its interaction with political skill also significantly predicted job performance, although not precisely as hypothesized. Implications of the results and directions for future research are provided.     

Recognition of facial affect in Borderline Personality Disorder

Patients with Borderline Personality Disorder (BPD) have been described as emotionally hyperresponsive, especially to anger and fear in social contexts. The aim was to investigate whether BPD patients are more sensitive but less accurate in terms of basic emotion recognition, and show a bias towards perceiving anger and fear when evaluating ambiguous facial expressions. Twenty-five women with BPD were compared with healthy controls on two different facial emotion recognition tasks. The first task allowed the assessment of the subjective detection threshold as well as the number of evaluation errors on six basic emotions. The second task assessed a response bias to blends of basic emotions. BPD patients showed no general deficit on the affect recognition task, but did show enhanced learning over the course of the experiment. For ambiguous emotional stimuli, we found a bias towards the perception of anger in the BPD patients but not towards fear. BPD patients are accurate in perceiving facial emotions, and are probably more sensitive to familiar facial expressions. They show a bias towards perceiving anger, when socio-affective cues are ambiguous. Interpersonal training should focus on the differentiation of ambiguous emotion in order to reduce a biased appraisal of others.     

Neuroendocrine stress responses to an oral academic examination: No strong influence of sex, repeated participation and personality traits

Public speaking tasks have been widely used as laboratory stressors in human research. Fewer studies have investigated similar real life situations like oral examinations and results have been inconsistent. The present study investigated salivary cortisol (as a marker of hypothalamus-pituitary-adrenal (HPA) activity) and salivary alpha-amylase (sAA as a marker of sympathetic nervous system (SNS) activity) within the context of a university examination. Subjects were 40 undergraduate students who participated in an oral examination. Of these, 20 also participated in a second examination within a few weeks. Cortisol and sAA were measured immediately before and after the examination and on a control day. Additionally, subjects filled out personality questionnaires. A strong anticipatory increase in salivary cortisol and sAA as well as more modest further increases between the pre- and post-measurements were detected during the examination. Sex or oral contraceptive use had no influence on either measure. In addition, no significant differences between the first and second examination were observed. The findings indicate the neuroendocrine stress responses to laboratory stressors and to heralded real life stressors as well as the modulatory variables involved differ from each other.     

Visuospatial attention and redundancy gain

Two experiments investigated the effect of visuospatial attention on redundancy gain in simple reaction time tasks. In each trial participants were given a central arrow cue indicating where a stimulus would most likely be presented (i.e., upper or lower half of the display in Experiment 1; left or right half of the display in Experiment 2). Then, a single stimulus or two redundant stimuli could be presented in either expected or unexpected locations. Replicating previous findings, responses were faster when stimuli appeared in expected rather than unexpected locations, and they were also faster when two redundant stimuli were presented than when only one was. Critically, redundancy gain was statistically equivalent for stimuli in expected and unexpected locations, suggesting that the effect of redundancy gain arises after the perceptual processes influenced by the allocation of visuospatial attention.

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