32,322 research outputs found
Linear modelling of attentional resource allocation
Eight subjects time-shared performance of two compensatory tracking tasks under conditions when both were of constant difficulty, and when the control order of one task (designated primary) was varied over time within a trial. On line performance feedback was presented on half of the trials. The data are interpreted in terms of a linear model of the operator's attention allocation system, and suggest that this allocation is strongly suboptimal. Furthermore, the limitations in reallocating attentional resources between tasks, in response to difficulty fluctuations were not reduced by augmented performance feedback. Some characteristics of the allocation system are described, and reasons for its limitations suggested
Robust Modeling of Epistemic Mental States
This work identifies and advances some research challenges in the analysis of
facial features and their temporal dynamics with epistemic mental states in
dyadic conversations. Epistemic states are: Agreement, Concentration,
Thoughtful, Certain, and Interest. In this paper, we perform a number of
statistical analyses and simulations to identify the relationship between
facial features and epistemic states. Non-linear relations are found to be more
prevalent, while temporal features derived from original facial features have
demonstrated a strong correlation with intensity changes. Then, we propose a
novel prediction framework that takes facial features and their nonlinear
relation scores as input and predict different epistemic states in videos. The
prediction of epistemic states is boosted when the classification of emotion
changing regions such as rising, falling, or steady-state are incorporated with
the temporal features. The proposed predictive models can predict the epistemic
states with significantly improved accuracy: correlation coefficient (CoERR)
for Agreement is 0.827, for Concentration 0.901, for Thoughtful 0.794, for
Certain 0.854, and for Interest 0.913.Comment: Accepted for Publication in Multimedia Tools and Application, Special
Issue: Socio-Affective Technologie
Aerospace medicine and biology: A continuing bibliography with indexes (supplement 333)
This bibliography lists 122 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during January, 1990. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled environments, safety equipment, exobiology and extraterrestrial life, and flight crew behavior and performance
Aerospace medicine and biology. A continuing bibliography with indexes, supplement 195
This bibliography lists 148 reports, articles, and other documents introduced into the NASA scientific and technical information system in June 1979
Aerospace Medicine and Biology: A continuing supplement 180, May 1978
This special bibliography lists 201 reports, articles, and other documents introduced into the NASA scientific and technical information system in April 1978
Aerospace Medicine and Biology: A continuing bibliography with indexes (supplement 133)
This special bibliography lists 276 reports, articles, and other documents introduced into the NASA Scientific and Technical Information System in September 1974
Exploring social gambling: scoping, classification and evidence review
The aim of this report is to speculate on the level of concern we might have regarding consumer risk in relation to ‘social gambling.’ In doing so, this report is intended to help form the basis to initiate debate around a new and under-researched social issue; assist in setting a scientific research agenda; and, where appropriate, highlight concerns about any potential areas that need to be considered in terms of precautionary regulation. This report does not present a set of empirical research findings regarding ‘social gambling’ but rather gathers information to improve stakeholder understanding
Aerospace medicine and biology: A continuing bibliography with indexes, supplement 184
This bibliography lists 139 reports, articles, and other documents introduced into the NASA scientific and technical information system in August 1978
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