Perpetual contact as a communicative affordance: Opportunities, constraints, and emotions

Health Tourism: Opportunities, Constraints, Obstacles and Solutions

Communication within on-line forums: the opportunities, the constraints and the value of a communicative approach

This paper is an investigation of the nature and the value of asynchronous on-line discussion within small groups of learners. It draws on research into the experiences of adult learners within short courses and formal post degree settings in which it was found that learners valued on-line discussion but experienced several constraints on participation. It is suggested that the nature of the me...

Task constraints on affordance boundaries.

The actualization of a simple affordance task-grasping and moving wooden planks of different sizes using either one or two hands-was assessed in the context of task-relevant (plank sequence, plank presentation speed) and task-irrelevant (cognitive load) manipulations. In Experiment 1, fast (3 s/plank) and self-paced ( approximately 5 s/plank) presentation speeds revealed hysteresis; the transit...

Communicative needs and respiratory constraints

This study investigates timing of communicative behaviour with respect to speaker’s respiratory cycle. The data is drawn from a corpus of multiparty conversations in Swedish. We find that while longer utterances (> 1 s) are tied, predictably, primarily to exhalation onset, shorter vocalisations are spread more uniformly across the respiratory cycle. In addition, nods, which are free from any re...

Task Constraints on Affordance Boundaries 1 Task Constraints on Affordance Boundaries

The actualization of a simple affordance task—grasping and moving wooden planks of different sizes using either one or two hands—was assessed in the context of task-relevant (plank sequence, plank presentation speed) and task-irrelevant (cognitive load) manipulations. In Experiment 1, fast (3 sec/plank) and self-paced (≈ 5 sec/plank) presentation speeds revealed hysteresis: The transition point...