Body-scaled affordances in sensory substitution

The research field on sensory substitution devices has strong implications for theoretical work on perceptual consciousness. One of these implications concerns the extent to which the devices allow distal attribution. The present study applies a classic empirical approach on the perception of affordances to the field of sensory substitution. The reported experiment considers the perception of the stair-climbing affordance. Participants judged the climbability of steps apprehended through a vibrotactile sensory substitution device. If measured with standard metric units, climbability judgments of tall and short participants differed, but if measured in units of leg length, judgments did not differ. These results are similar to paradigmatic results in regular visual perception. We conclude that our sensory substitution device allows the perception of affordances. More generally, we argue that the theory of affordances may enrich theoretical debates concerning sensory substitution to a larger extent than has hitherto been the case.     

人际交往中的认知偏差简析

现代社会个人的成长和发展离不开有效的人际交往,而人际交往中的认知偏差往往会影响人们人际交往的效果和质量,了解和认清人际交往中的认知偏差有利于我们建立良好的人际关系。文章对可能影响人际交往的首因效应、晕轮效应、刻板印象、基本归因偏差、虚假一致偏差及当事人与旁观者归因分歧的含义、表现和原因作了简要分析,以期能帮助人们对人际交往中的认知偏差加以防范和纠正,提高人们的人际交往能力。     

The influence of goals on sense of control

We examined the influence of goals on sense of control relative to that experienced when taking action randomly. In the experimental task, participants controlled the direction of a moving dot by pressing the left and right keys at will without a specific goal (the control condition), directed the moving dot to a destination as often as possible (the strong goal condition), or kept the moving dot in the central area of the screen (the weak goal condition) for as long as possible. The results showed that the strong goal impaired the sense of control, but the weak goal did not exert an influence. We concluded that the goal-based expectation influenced sense of control, but the goal-directed action selection did not. Furthermore, we proposed a modified comparator model of the sense of control, offering a promising approach to integration of the predictive and postdictive processes involved in the sense of control.     

The relation between goal adjustment,goal disturbance,and mental well-being among persons with multiple sclerosis

Objective: This study investigated the role of goal adjustment, i.e. disengaging from blocked goals and reengaging into alternative goals, in mental well-being and goal disturbance in persons with multiple sclerosis (MS).

Design: A cross-sectional design was used with self-report data from questionnaires and Personal Project Analysis (PPA).

Main outcome measures: Dependent variables were mental well-being, indicated by depression/anxiety (HADS; Hospital Anxiety and Depression Scale) and mental functioning (SF-36; Short Form Health Survey), and goal disturbance, indicated by goal manageability and goal interference (PPA). Independent variables were patient-reported physical impairment (SF-36) and goal disengagement and reengagement (GAS; Goal Adjustment Scale).

Results: Higher goal reengagement was associated with better mental well-being, but unrelated to goal disturbance. Goal disengagement only showed a negative association with anxiety. High disengagement was associated with lower goal interference but only for those also scoring high on reengagement. Goal adjustment did not buffer the effects of physical impairment on mental well-being and goal disturbance. Contrary to expectations, higher goal reengagement increased the association between physical impairment and goal interference.

Conclusion: Although goal reengagement is associated with better mental well-being in persons with MS, it might also strengthen the perceived effect of physical impairment on goal interference.     

Use of trait information in the attribution of intentions by popular,average and rejected children

This study aimed to examine the extent to which children's sociometric status is related to the use of trait information. Therefore, 99 children (aged 4–6) were asked to make inferences about protagonists' future actions when positive or negative trait information was given. Results showed that rejected children were less affected by the protagonist's trait information than their more popular peers (average and popular) in both conditions. As well as their frequently reported hostile bias, rejected children also showed a positive bias. This suggests a general delay in social reasoning among rejected children, but can also be explained by a difference in their development of social cognition based on their atypical daily interactions. Copyright © 2004 John Wiley & Sons, Ltd.     

Reconceptualising parental monitoring within a model of goal-directed parental action

The concept and operationalisation of parental monitoring in adolescent behavioural research is idiosyncratic, and often conflates multiple concepts. This hinders study and understanding of its role in the distinct processes of adolescent development and behaviour. This paper introduces a model of Goal-Directed Parental Action, applied to adolescent crime, in order to situate and thus define the concept of parental monitoring. This model draws on Situational Action Theory to both prioritise motivation and specify a parental action process. This process distinguishes parental goals from the means by which to achieve them and from the knowledge gathering required to evaluate progress towards such goals. Within this framework, parental monitoring is defined as the employment of active information-gathering behaviours by parents to help them to gain knowledge about and evaluate their child's progress towards a range of parentally selected developmental and behavioural goals. In addition to facilitating this definition of parental monitoring, the model of Goal-Directed Parental Action has future potential to clarify other parenting concepts and processes.