Spatial distribution of attention under varying task demands

Attention Modifies Spatial Resolution According to Task Demands.

How does visual attention affect spatial resolution? In texture-segmentation tasks, exogenous (involuntary) attention automatically increases resolution at the attended location, which improves performance where resolution is too low (at the periphery) but impairs performance where resolution is already too high (at central locations). Conversely, endogenous (voluntary) attention improves perfo...

Perceptual isochrony and fluency in speech by normal talkers under varying task demands

Attentional Demands of Balance Under Dual Task Conditions in Young Adults

Objectives: The aim of this study was to identify the role of attentional process in postural control using choice reaction time task while changing the visual and proprioceptive cues under difficult balance task (standing on one-leg). Methods: This cross-sectional study was conducted by participating 20 young people (22.75±2.29). Each subject performed one-leg standing as balance task for e...

Competition under Time-Varying Demands and Dynamic Lot Sizing Costs

We develop a competitive pricing model which combines the complexity of time-varying demand and cost functions and that of scale economies arising from dynamic lot sizing costs. Each firm can replenish inventory in each of the T periods into which the planning horizon is partitioned. Fixed as well as variable procurement costs are incurred for each procurement order, along with inventory carryi...

Audiovisual Integration of Speech Falters under High Attention Demands

One of the most commonly cited examples of human multisensory integration occurs during exposure to natural speech, when the vocal and the visual aspects of the signal are integrated in a unitary percept. Audiovisual association of facial gestures and vocal sounds has been demonstrated in nonhuman primates and in prelinguistic children, arguing for a general basis for this capacity. One critica...