Alle Publikationen
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2018
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(2018): Timing affect. Dimension-specific time-based expectancy for affect. In: Emotion (Washington, D.C.) 18 (5), S. 646-669. DOI: 10.1037/emo0000380
DOI: http://www.ncbi.nlm.nih.gov/pubmed/29154586 Abstract: Affective information in our environment is often predictable by time; for example, positive answers are typically given faster than negative ones. Here we demonstrate, for the first time, that humans can implicitly adapt to time-based affect predictability. Participants were asked to categorize words, with the words' irrelevant valences being predictable by the timing of their occurrence. Adaptation to this pattern became evident by better performance for typical combinations of time and valence, relative to atypical combinations (Experiment 2). A comparable adaptation was observed for predictable activation (another affective dimension, Experiment 4), but not for predictable imageability (a nonaffective dimension, Experiment 3). In none of the experiments did participants become aware of the time-based predictability. These findings have significant implications for our theoretical understanding of human time-based expectancy, as well as important implications for the scheduling of system delays in artificial interaction and communication environments. (PsycINFO Database Record zitiert von 1
2011
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(2011): How long is a moment: The perception and reality of task-related absences. In: International Journal of Social Robotics 3 (3), S. 243-252. DOI: 10.1007/s12369-011-0098-7
DOI: https://doi.org/10.1007/s12369-011-0098-7 Abstract: We have investigated actual and perceived human performance associated with a simple task involving walking and applied the developed knowledge to a human-robot interaction. Based on experiments involving walking at a ’purposeful and comfortable’ pace, parameters were determined for a trapezoidal model of walking: starting from standing still, accelerating to a constant pace, walking at a constant pace, and decelerating to a stop. We also collected data on humans’ evaluation of the accomplishment of a simple task involving walking: determining the transitions from having taken too short a period of time to an appropriate time and from having taken an appropriate time to having taken too long. People were found to be accurate in estimating the task duration for short tasks, but to underestimate the duration of longer tasks. This information was applied to a human-robot interaction involving a human leaving for a ’moment’ and the robot knows how long the task should take and how time is evaluated by a human. (PsycINFO Database Record (c) 2019 APA, all rights reserved)
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