Stimuli fixation and manual response as a function of expectancies

Stimuli fixation and manual response as a function of expectancies

TNO Technische Menskunde
Martens, M.H.

2004

Two experiments investigated effects of expectations on eye fixations and responses to expected and unexpected information in a laboratory setting. Stimulus fixation and manual responses to predefined targets among distractors were measured in a dynamic environment shown on a monitor. Participants were part of either a predictable condition (predictable sequence of targets and distractors) or a random condition. In the predictable condition, participants fixated expected distractors less than targets, with similar fixation times in the random condition. Responses to targets were faster in the predictable condition than in the random condition. Irregularities were either missed or responses were slow. This indicates that incorrect expectations may have negative consequences, with practical implications for skill-based tasks such as operator monitoring and driving. Actual or potential applications of this research include introducing operator support for tasks in which the risk of missing unexpected information or of slow responses may be dramatic.

Uit twee laboratoriumstudies bleek dat het hebben van verwachtingen leidt tot het zeer laat reageren of zelfs missen van targets op het moment dat de informatie afwijkt.

Display devices
Monitoring
Eye fixations
Manual response
Stimuli fixation
Human engineering
Driving ability
Dynamics
Eye fixation
Information processing
Job performance
Stimulus response
Task performance
Cohort Studies
Computer Simulation
Eye Movements
Fixation, Ocular
Humans
Mental Recall
Photic Stimulation
Psychomotor Performance
Reaction Time
Sensitivity and Specificity
Task Performance and Analysis
Driver distraction
Visual search

http://resolver.tudelft.nl/uuid:d1beef72-e54f-4ca7-a537-e721155333aa

https://doi.org/10.1518/hfes.46.3.410.50402

11125

Human factors, 46 (46), 410-423

article