Browsing by Subject "Color Perception"

Now showing 1 - 4 of 4

Open Access
Effects of coloured lighting on the perception of interior spaces
(SAGE, 2015-02-01) Odabaşioğlu, S.; Olguntürk, N.
Use of coloured lighting in interior spaces has become prevalent in recent years. Considerable importance is ascribed to coloured lighting in interior and lighting design. The effects of colour on the perception of interior spaces have been studied as surface colour; but here, the effects of three different types of chromatic light were investigated. The lighting differed in colour (red, green and white) and perceptions of interior space were assessed. 97 participants (59 women, 38 men; M age = 21.4 yr.) evaluated the experiment room on a questionnaire assessing eight evaluative factors: Pleasantness, Arousal, Aesthetics, Usefulness, Comfort, Spaciousness, Colour, and Lighting quality. Perceptions of the room differed by colour of lighting for some of the evaluative factors, but there was no sex difference in perceptions. Interior spaces may be perceived as equally pleasant under white, green and red lighting. Under white lighting a space is perceived as more useful, spacious, clear, and luminous. Green lighting would make the same effect. Green and white lighting were perceived equally comfortable in an interior space. Chromatic coloured lighting was perceived to be more aesthetic than white lighting. The results support previous findings for some evaluative factors, but differed for others.
Open Access
Evaluation of store image with respect to the value and warmth of color on store surface elements
(2013) Sağıroğlu, Seçkin
This study examined the changes in value and warmth of color on store surface elements considering store image. To evaluate the store image, four different existing retail stores were chosen which had surfaces in red, green, yellow and blue colors which also referred four primary colors (red, green, yellow and blue) of Natural Color System (NCS) and these retail stores were manipulated through a 3D modeling program. Manipulated samples represented 20 per cent increased and decreased values as well as opposite colors of these four color hues. A questionnaire was used to understand whether changes in color made any difference on perception of the store image. The questionnaire consisted of 13 adjective pairs and a six-point semantic differential scale to evaluate manipulations in retail store samples in terms of prestigiousness and liking. Eighty Bilkent University students participated from different departments except design departments. According to results, value manipulations seemed to influence perception of store image. Differences in warmth of color had conflicting results with previous studies when prestigiousness was taken into consideration
Open Access
Neural correlates of acquired color category effects
(2012) Clifford, A.; Franklin, A.; Holmes, A.; Drivonikou V.G.; Özgen, E.; Davies I.R.L.
Category training can induce category effects, whereby color discrimination of stimuli spanning a newly learned category boundary is enhanced relative to equivalently spaced stimuli from within the newly learned category (e.g., categorical perception). However, the underlying mechanisms of these acquired category effects are not fully understood. In the current study, Event-Related Potentials (ERPs) were recorded during a visual oddball task where standard and deviant colored stimuli from the same or different novel categories were presented. ERPs were recorded for a test group who were trained on these novel categories, and for an untrained control group. Category effects were only found for the test group on the trained region of color space, and only occurred during post-perceptual stages of processing. These findings provide new evidence for the involvement of cognitive mechanisms in acquired category effects and suggest that category effects of this kind can exist independent of early perceptual processes. © 2012.
Open Access
What can we learn from toddlers about categorical perception of color? comments on Goldstein, Davidoff, and Roberson
(Elsevier Inc., 2009) Franklin A.; Wright, O.; Davies, I. R. L.
We comment on Goldstein, Davidoff, and Roberson's replication and extension (Journal of Experimental Child Psychology, 102, 219-238 [2009]) of our study of the effect of toddlers' color term knowledge on their categorical perception (CP) of color (Journal of Experimental Child Psychology, 90, 114-141 [2005]). First, we discuss how best to assess color term knowledge when concerned with the effects of language on color CP. A reanalysis of our data indicates that even toddlers who do not know the terms for the relevant focal colors still show CP. Second, we comment on Goldstein and colleagues' finding of blue-purple CP, as we did, but not of blue-green CP in Himba toddlers. We present contrasting data from Wright (unpublished PhD thesis, University of Surrey, 2006) that demonstrates blue-green CP in Himba toddlers. Finally, we discuss the limitations of the approach taken by all of these investigations and discuss theoretical accounts of the origin and nature of color CP.