Effects of a Large Area Glare Source in Cognitive Efficiency and Effectiveness in Visual Display Terminal Work

AbstractGlare is a common visual stressor of office work and in today's offices the prevalence of information and communication technologies adds additional mental demands. The aim of this study was to explore the role of light as a cognitive stressor in visual display terminal (VDT) work. We used a large area light source in a 2 × 2 × 2 full factorial experimental design. We assessed cognitive efficiency using the RTLX method and cognitive effectiveness using the RST method in different lighting scenarios. The main effects analysis showed lower working memory capacity for high luminance and large source, with statistically significant lower cognitive performance in prosaccade conditions. No statistically significant relationship was found between cognitive efficiency and the experimental factors.

[1]  Toshie Iwata,et al.  EXPERIMENTAL STUDY ON DISCOMFORT GLARE CAUSED BY WINDOWS : Subjective response to glare from a simulated window , 1992 .

[2]  P. R. Tregenza,et al.  View and discomfort glare from windows , 2007 .

[3]  Susana Rubio,et al.  Evaluation of Subjective Mental Workload: A Comparison of SWAT, NASA‐TLX, and Workload Profile Methods , 2004 .

[4]  Robert H. Logie,et al.  Processing and Storage in Working Memory Span , 2001, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[5]  B. Arnetz,et al.  Technological stress: psychophysiological symptoms in modern offices. , 1997, Journal of psychosomatic research.

[6]  Richard C. Atkinson,et al.  Human Memory: A Proposed System and its Control Processes , 1968, Psychology of Learning and Motivation.

[7]  A. Miyake,et al.  Models of Working Memory: Mechanisms of Active Maintenance and Executive Control , 1999 .

[8]  A. Baddeley.  The episodic buffer: a new component of working memory? , 2000, Trends in Cognitive Sciences.

[9]  R. Baron,et al.  Effects of indoor lighting (illuminance and spectral distribution) on the performance of cognitive tasks and interpersonal behaviors: The potential mediating role of positive affect , 1992 .

[10]  C. Cuttle.  Towards the third stage of the lighting profession , 2010 .

[11]  Josef C. Schrock,et al.  Working memory capacity and the antisaccade task: individual differences in voluntary saccade control. , 2004, Journal of experimental psychology. Learning, memory, and cognition.

[12]  Werner Osterhaus,et al.  Discomfort glare assessment and prevention for daylight applications in office environments , 2005 .

[13]  M. Smyth.  Interference with Rehearsal in Spatial Working Memory in the Absence of Eye Movements , 1996, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[14]  Roberto G. Rodriguez,et al.  An online tool to identify white-collar worker profiles in relation to their ICT skills and mental strain , 2011, Cognition, Technology & Work.

[15]  P. E. Hallett,et al.  Primary and secondary saccades to goals defined by instructions , 1978, Vision Research.

[16]  Hyunjoo Han,et al.  The position index of a glare source at the borderline between comfort and discomfort (BCD) in the whole visual field , 2009 .

[17]  Jennifer A. Veitch,et al.  Determinants of Lighting Quality I: State of the Science , 1998 .

[18]  I. L. Bailey,et al.  Large area glare sources and their effect on visual discomfort and visual performance at computer workstations , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[19]  S. Hygge,et al.  EFFECTS OF NOISE, HEAT AND INDOOR LIGHTING ON COGNITIVE PERFORMANCE AND SELF-REPORTED AFFECT , 2001 .

[20]  G. A. Miller.  THE PSYCHOLOGICAL REVIEW THE MAGICAL NUMBER SEVEN, PLUS OR MINUS TWO: SOME LIMITS ON OUR CAPACITY FOR PROCESSING INFORMATION 1 , 1956 .

[21]  W.K.E. Osterhaus,et al.  Office lighting: a review of 80 years of standards and recommendations , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[22]  R. Dogniaux,et al.  Glare from windows: current views of the problem , 1982 .

[23]  Wout J. M. van Bommel,et al.  Non-visual biological effect of lighting and the practical meaning for lighting for work. , 2006 .

[24]  R. G. Hopkinson,et al.  Glare from daylighting in buildings. , 1972, Applied ergonomics.

[25]  R. G. Hopkinson.  A study of glare from very large sources , 1960 .

[26]  J. Towse,et al.  Individual differences in working memory , 2006, Neuroscience.

[27]  M. Robert,et al.  Are there gender differences in verbal and visuospatial working-memory resources? , 2006 .

[28]  P. Carpenter,et al.  Individual differences in working memory and reading , 1980 .

[29]  I. Knez.  Effects of indoor lighting on mood and cognition , 1995 .

[30]  J. Theeuwes,et al.  Remembering a Location Makes the Eyes Curve Away , 2005, Psychological science.

[31]  Toshie Iwata,et al.  Discomfort caused by wide-source glare , 1990 .

[32]  Erik Wästlund,et al.  Effects of VDT and paper presentation on consumption and production of information: Psychological and physiological factors , 2005, Comput. Hum. Behav..

[33]  Anca D. Galasiu,et al.  Occupant preferences and satisfaction with the luminous environment and control systems in daylit offices: a literature review , 2006 .

[34]  F. Biocca,et al.  New media technology and youth: trends in the evolution of new media. , 2000, The Journal of adolescent health : official publication of the Society for Adolescent Medicine.

[35]  W. Schobersberger,et al.  Effects of variable lighting intensities and colour temperatures on sulphatoxymelatonin and subjective mood in an experimental office workplace. , 2008, Applied ergonomics.

[36]  Toshie Iwata,et al.  EXPERIMENTAL STUDY ON DISCOMFORT GLARE CAUSED BY WINDOWS PART 3 : Development of a method for evaluating discomfort glare from a large light source , 1996 .

[37]  Ingrid Fonseca,et al.  Natural Light and Environmental Stress , 2006 .

[38]  R. Engle,et al.  The generality of working memory capacity: a latent-variable approach to verbal and visuospatial memory span and reasoning. , 2004, Journal of experimental psychology. General.

[39]  A. Baddeley,et al.  The multi-component model of working memory: Explorations in experimental cognitive psychology , 2006, Neuroscience.