Convivial Acts for an Ecosensual Labyrinth

Abstract

This paper addresses queer conviviality across Crab & Bee’s “Plymouth Labyrinth” project (2018–19); a 6-month activity including group walks, ritual sharings, group readings, postal art, poetry groups, site-specific dance, exhibition and making workshops. Based around convivial web-walking, the account examines how, through spinning out of collaborations and unfolding new forms, a web of work and activity was generated to support intensity and connectivity. The paper attends to queer aspects of conviviality, such as attention to unhuman partners, becoming-animal, simultaneity/plateauing in haecceity, dispersals of subjectivity and relations of threads (lines of desire) to web making.     

Marking effects in instrumental performance on DRH schedules

Three experiments investigated the effect of presenting a brief stimulus after a response sequence on the rate of lever-pressing by rats on differential reinforcement of high rate (DRH) schedules. In Experiment 1 enhanced responding was produced by a visual stimulus presented during a 500-msec delay of reinforcement compared to a condition in which no stimulus was presented. In Experiment 2 rats responded on a multiple DRH DRH schedule in which the DRH contingency was reinforced on a 50% schedule in each component. Equivalent levels of responding occurred in the components when reinforcement was signalled in one component and when the signal was presented following the non-reinforced schedules in the other components. A further group of rats received the stimulus presented after non-reinforced schedules in one component but not at all in the other component; responding was enhanced in the former component relative to the latter component. In Experiment 3 brief stimuli presented after the completion of DRH components on a second-order VR (DRH) schedule elevated response rates irrespective of whether the signal was presented paired or unpaired with reinforcement. The present data support the view that a brief signal may serve to mark a response sequence in memory and facilitate instrumental performance.     

Interference with judgements of control and learning as a result of prior exposure to controllable and uncontrollable feedback during concept-learning tasks

Two experiments examined whether exposure to an uncontrollable relationship between an action and its outcome during a nonaversive pretreatment phase would attenuate subsequent ratings of control given to actions emitted by subjects. In Experiment 1, such an interference effect was demonstrated relative to a group that received prior training with a controllable action- outcome relationship, and relative to a group not exposed to any prior relationship. In Experiment 2, these effects were replicated, and interference was also found to occur when learning a maze task. Thus, the effects of helplessness were shown to be quite general, to be produced by a nonaversive induction procedure, and to occur most readily when the current contingency between action and outcome was weakest.     

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