Woodrow Gustafson - Academia.edu (original) (raw)

Uploads

Papers by Woodrow Gustafson

Research paper thumbnail of Perceptual Dependence of Size and Distance? A Within Subjects Variability Approach

Journal of Vision, 2012

Abstract Are percepts of size and distance coupled or independent? According to the size-distance... more Abstract Are percepts of size and distance coupled or independent? According to the size-distance invariance hypothesis and Emmert's Law (Emmert, 1881; Gilinsky, 1951), perceived size is derived from apparent distance and the visual angle of the object. In contrast, Gibson (1979) posited that size and distance are perceived independently. Many studies have supported a relationship between estimates of size and distance, typically through positive correlations in mean values. However, to truly assess perceptual ...

Research paper thumbnail of Effect of Active Workstation Use on Workload, Task Performance, and Postural and Physiological Responses

We assessed workload and performance when using two active workstations. Our results, consistent ... more We assessed workload and performance when using two active
workstations. Our results, consistent with earlier evidence, indicates that active workstations do
not increase physical activity at the expense of reduced performance and operator workload, if
these workstations are used for simple tasks that do not require great attention or fine motor
control. Active workstations also allowed for more variability in posture and reduce static
posture. However, reinforcement of ergonomics recommendations in terms of reducing nonneutral
postures may be necessary.

Research paper thumbnail of Perceptual Dependence of Size and Distance? A Within Subjects Variability Approach

Journal of Vision, 2012

Abstract Are percepts of size and distance coupled or independent? According to the size-distance... more Abstract Are percepts of size and distance coupled or independent? According to the size-distance invariance hypothesis and Emmert's Law (Emmert, 1881; Gilinsky, 1951), perceived size is derived from apparent distance and the visual angle of the object. In contrast, Gibson (1979) posited that size and distance are perceived independently. Many studies have supported a relationship between estimates of size and distance, typically through positive correlations in mean values. However, to truly assess perceptual ...

Research paper thumbnail of Effect of Active Workstation Use on Workload, Task Performance, and Postural and Physiological Responses

We assessed workload and performance when using two active workstations. Our results, consistent ... more We assessed workload and performance when using two active
workstations. Our results, consistent with earlier evidence, indicates that active workstations do
not increase physical activity at the expense of reduced performance and operator workload, if
these workstations are used for simple tasks that do not require great attention or fine motor
control. Active workstations also allowed for more variability in posture and reduce static
posture. However, reinforcement of ergonomics recommendations in terms of reducing nonneutral
postures may be necessary.

Log In