Random number generation and working memory

We demonstrate the close relationship that exists between random sequence generation and working memory functioning. We clarify the nature of this link by examining the impact of concurrent requirements for random sequence response quality. Experiments 1A and 1B show that marking specific response choices for differential treatment, either by requiring an ancillary behaviour or by suppressing these choices from output, impairs overall sequence quality. Contrasting with previous findings, these distinct concurrent tasks have comparable effects. We show that disruption is found only when concurrent demand is high. Experiment 2 demonstrates that increasing the dynamic working memory load by requiring the ancillary response to change during the task leads to additional disruption of randomisation. The results extend and refine our understanding of the contribution of active maintenance of representations in random generation.     

Conditions for young infants' failure to perceive trajectory continuity

When viewing an event in which an object moves behind an occluder on part of its trajectory, 4-month-old infants perceive the trajectory as continuous only when time or distance out of sight is short. Little is known, however, about the conditions under which young infants perceive trajectories to be discontinuous. In the present studies we focus first on infants' perception of trajectories that change during a period of occlusion. Four-month-olds perceive discontinuity in trajectories that change in height or orientation while behind an occluder, and this is true even when a change in direction could be due to an invisible bouncing collision with a surface. Further experiments reveal that infants do not perceive diagonal linear trajectories as continuous across an occlusion unless the occluding and revealing edges are orthogonal to the path of movement. Implications for theories of perceptual and cognitive development are discussed.     

Geographies of Meaningful Living

Because it is significantly unclear what ‘meaningful’ does or should pick out when applied to a life, any account of meaningful living will be constructive and not merely clarificatory. Where in our conceptual geography is ‘meaningful’ best located? What conceptual work do we want the concept to do? What I call agent‐independent and agent‐independent‐plus conceptions of meaningfulness locate ‘meaningful’ within the conceptual geography of agent‐independent evaluative standards and assign ‘meaningful’ the work of commending lives. I argue that the not wholly welcome implications of these more dominant approaches to meaningfulness make it plausible to locate ‘meaningful’ on an alternative conceptual geography — that of agents as end‐setters and of agent‐dependent value assessments — and to assign it the work of picking out lives whose time‐expenditures are intelligible to the agent. I respond to the challenge confronting any subjectivist conception of meaningfulness that it is overly permissive.     

Scaffolding a community of competent practitioners: positioning and agency in a training program for narrative counseling

This article explores the scaffolding of learning experiences in a postgraduate program in New Zealand that offers training in narrative counseling. The authors draw on positioning theory to identify student shifts in learning, and in agency, that help build an increasingly skilled and peer-generated context for learning. We describe a selection of exercises and one key assignment, introduced in the course in a particular order, that we believe enable students to step into positions of agency which ultimately allow a competent community of learner-practitioners to emerge. We also describe a dance of positioning for ourselves as teachers in this program. We suggest that, at any given time, our own positioning is tied up with possibilities for student positioning. Acknowledging relationships of power in classrooms, we explore ways to align poststructuralist counseling practices and the teaching of these practices.