Color Perception

Bloj, Marina; Hedrich, Monika

doi:10.1007/978-3-540-79567-4_15

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Visualization of color is the result of stimulation of photoreceptor cells in the eyes and interpretation of the visual signals by the brain. Color perception can be explained by two fundamental theories, the trichromatic color theory and the opponent-process theory (Bloj and Hedrich, 2012). The trichromatic theory explains that normal color perception is determined by the interplay of signal from the three types of color-sensitive photoreceptors, or trichromatic cone cells, each with different spectral sensitivity peaks and ranges within the visual spectrum (Ohta and Robertson, 2006).…”

Section: Human Perception Of Colormentioning

confidence: 99%

Research Techniques Made Simple: Cutaneous Colorimetry: A Reliable Technique for Objective Skin Color Measurement

Dyer

Feig

et al. 2020

Journal of Investigative Dermatology

270

177

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Skin color evaluation contributes to assessment of an individual's cutaneous phenotype. Skin color changes provide important clues to disease progression or treatment response. Skin color is also a predictor of skin cancer risk. Melanin pigment, blood flow, skin thickness, and photoaging contribute to skin color. Melanin, hemoglobin, bilirubin, and carotene are the primary chromophores of skin color. Their concentrations vary depending on the individual's phenotype, anatomic location, external insults of chemical irritants and UVR, and physiological changes. The evaluation and perception of skin color are often subjective. Objective quantification of skin color can be achieved with colorimetric devices such as tristimulus colorimeters. These devices compute the intensity of light reflected from skin and correlate with pigmentation and erythema. Cutaneous color and color changes can be quantified under color organization systems, such as the CIELAB color space, which is standardized by the Commission Internationale de l'Eclairage (CIE). The CIELAB expresses color's lightness, red/green intensity, and yellow/blue intensity, as L*, a*, and b* values, respectively. Additionally, skin color's full spectral characteristics and cutaneous physiology can be measured with spectrophotometers. This article outlines basic principles of the CIELAB color system and how to optimally use colorimetric devices as a skin research tool.

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Section: Human Perception Of Colormentioning

confidence: 99%

Research Techniques Made Simple: Cutaneous Colorimetry: A Reliable Technique for Objective Skin Color Measurement

Dyer

Feig

et al. 2020

Journal of Investigative Dermatology

270

177

View full text Add to dashboard Cite

show abstract

“…Color is an essential property of a visual stimulus that can affect people's cognition, perception, and emotional response. [1][2][3] Many colors hold universal meanings in a wide range of perception activities, such as red indicating active and stimulating, and blue and green associated with quiet and calm. 4 Some other colors could gain consistent response and preference within a particular cultural group.…”

Section: Introductionmentioning

confidence: 99%

Effects of color on expectations of drug effects: A cross‐gender cross‐cultural study

Tao

Wang

2016

Color Research & Application

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To study the role of color in expectations of drug effects, 80 Chinese participants (40 females and 40 males) were asked to classify each of seven single colored capsules and six differently colored two-piece capsules into one of four classifications of drug effects. The results from the Chinese sample were also compared with that from four other cultural groups studied elsewhere. The Chi-square test results showed that all seven single colored capsules yielded non-chance distributions in classifications of drug effects, with six showing specific effects; and that five two-colored capsules had nonchance distributions, with four significantly associated with specific effects. Notable gender differences were observed in the expectations of drug effects. While the cross-group comparison revealed consistent red-stimulant and blue-depressant associations across the five cultural groups, disagreements existed for other colors among the groups. The findings emphasized the importance of color in drug design and administration in support of drug differentiation, medication adherence, and drug efficacy, and suggest gender and cultural implications on the basis of color to achieve better drug effects.

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“…Among these characteristics, colour has been widely utilised as a visual cue, since colour-coded displays draw attention more efficiently than achromatic displays (Laughery et al., 1993; Sanders and McCormick, 1993; Ng and Chan, 2018). Proper use of colour can enable people to identify targets easily and quickly within a search area (Silverstein, 1987; Pastoor, 1990; Shieh and Chen, 1997; Shieh and Lin, 2000; Tao et al., 2017, 2018a), make displays more pleasant (Pastoor, 1990), and influence operators’ cognition and perception (Christ, 1975; Braun and Silver, 1995; McKeown, 2008; Or and Chan, 2010; Suk and Irtel, 2010; Solli and Lenz, 2011; Bloj and Hedrich, 2012). On the contrary, if used in an inappropriate way, colours can lead to poor performance, high visual discomfort, and increased visual strain (Radl, 1982; Matthews, 1987; Luria et al., 1989; Shieh and Chen, 1997; Shieh and Lin, 2000).…”

Section: Introductionmentioning

confidence: 99%

Application of colour combinations on visual search tasks under vibration environments

et al. 2020

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Colour is widely utilised as a visual coding system in visual search, but its application under vibration conditions (e.g., in various vehicles) has not been fully explored. This study was designed to examine the effect of colour combinations on performance of visual search tasks conducted in vibration conditions. Forty-eight university students participated in an experiment where they were required to identify target type and location under 24 colour combinations (half in negative polarity and half in positive polarity) and three vibration conditions (static, low, and high). The findings showed that vibration did not significantly affect performance, perceptions, or physiological aspects. Colour combination significantly affected response time, and the participants preferred colour combinations that had the potential to produce better performance. Colour combinations with negative polarity (e.g., yellow on black and white on black) are recommended for presenting search interfaces. These findings are of importance in human–computer interface designs for information display under vibration conditions.

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Color Perception

Cited by 4 publications

References 23 publications

Research Techniques Made Simple: Cutaneous Colorimetry: A Reliable Technique for Objective Skin Color Measurement

Research Techniques Made Simple: Cutaneous Colorimetry: A Reliable Technique for Objective Skin Color Measurement

Effects of color on expectations of drug effects: A cross‐gender cross‐cultural study

Application of colour combinations on visual search tasks under vibration environments

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