Browsing by Subject "Colour"

Now showing 1 - 12 of 12

Open Access
The aid of colour on spatial navigation: A study in a virtual hospital environment
(ACM, 2016) Kumaoğlu, Özge; Olguntürk, Nilgün
The aim of this study is to explore the effects of colour as visuo-spatial cue on spatial navigation and developing a cognitive map in elderly in a simulated virtual hospital environment. The study further purports to explore whether it is possible to improve elders' spatial navigation and cognitive mapping performances as well as younger-aged group, by the aid of coloured visuo-spatial cues. © 2016 ACM.
Open Access
The aid of colour on visuospatial navigation of elderly people in a virtual polyclinic environment
(John Wiley and Sons, 2018) Kumoğlu-Süzer, Özge; Olguntürk, Nilgün
It is well documented that elderly people often have difficulties in finding their way in unfamiliar environments. In this study, we aimed to explore the usage of colour as visuospatial navigation tool for elderly people by testing in a virtually simulated polyclinic environment. We compared neutral, warm and cool coloured experiment settings to find out the effect of different colours on elderly people's visuospatial navigation performances. We conducted our experiment with 90 participants in two phases, each with a specific task (Route Replication and Picture Classification). The findings showed that neutral coloured setting affected participants' visuospatial navigation performances negatively compared to warm and cool coloured settings. However, there was no significant performance difference between warm and cool coloured environments. In addition to that, when they were asked to reach to the destination point, male participants spent shorter time, did fewer wrong turns, experienced fewer hesitations and traveled shorter distances compared to female participants. Currently, due to the increase in the elderly population, designing well-functioning interior spaces for the elderly has become a more pressing matter. We believe that the findings of this study will provide important clues for both interior designers and environmental psychologists.
Open Access
An analysis of basic design students' intuitive and analytic attitudes in colour decisions
(2003) Akbay, Saadet
Colour can be defined as a subjective preference, an experience and an intuitive sense, or as a theory and a science. Design education regards colour as a scientific theory by means of reasoning. The design students’ colour decisions, values, and intuitive attitudes are aimed to be developed and cultivated by colour education in basic design, and supported and equipped by knowledge towards analytical attitudes. Thus, the major concern of this study is to analyze the progression of basic design students’ intuitive and analytical attitudes in colour decisions by means of aesthetic values in case of Interior Architecture and Environmental Department of Bilkent University. The results of the research show that during the progression of colour education in basic design, the students’ colour decision tendencies towards subjective and intuitive attitudes have a decrease and their tendencies towards knowledge-based and analytical attitudes have an increase.
Open Access
Colour and design: from natural patterns to monochrome compositions
(Elsevier, 2011-03) Olguntürk, N.; Demirkan, H.
There is no doubt that nature provides endless inspiration to the world of design. In order to explore the role of colour in design, forty-two people were asked to first choose a pattern from nature, then to abstract this pattern into geometric shapes and finally to colour this pattern. All work done by the participants were statistically analysed to find out the effect of colour on design. Findings of the study suggest that colour in a pattern is the first principal component of design as a unifier whereas this is replaced with the number of shapes in one group in black and white patterns.
Open Access
Colour as an aid for elderly during visuospatial navigation in a virtual polyclinic environment
(2018-09) Süzer, Özge Kumoğlu
It is well documented that elderly people often have difficulties in finding their way in unfamiliar environments. In this study, it is aimed to explore the usage of colour as visuospatial navigation tool for elderly people with tests in a virtually simulated polyclinic environment. Neutral, warm and cool colour experiment settings were compared to find out the effect of different colours on elderly people’s visuospatial navigation performances by using a head mounted display. The experiment was conducted with 90 participants in three phases; eligibility questionnaires, testing on computer, and presence questionnaire. The findings showed that neutral coloured setting affected participants’ visuospatial navigation performances negatively compared to warm and cool coloured settings. However, there was no significant performance difference between warm and cool coloured environments. In addition to that, when they were asked to reach to the destination point, male participants spent shorter time, did fewer wrong turns, experienced fewer hesitations and travelled shorter distances compared to female participants. Currently, due to the increase in the elderly population, designing well-functioning interior spaces for the elderly has become a more pressing matter. The findings of this study will provide important clues for both interior designers and environmental psychologists.
Open Access
Colour contribution to children's wayfinding in school environments
(Elsevier, 2011) Helvacioglu, E.; Olgunturk, N.
The purpose of this study was to explore the contribution of colour to children's wayfinding ability in school environments and to examine the differences between colours in terms of their remembrance and usability in route learning process. The experiment was conducted with three different sample groups for each of three experiment sets differentiated by their colour arrangement. The participants totalled 100 primary school children aged seven and eight years old. The study was conducted in four phases. In the first phase, the participants were tested for familiarity with the experiment site and also for colour vision deficiencies by using Ishihara's tests for colour-blindness. In the second phase, they were escorted on the experiment route by the tester one by one, from one starting point to one end point and were asked to lead the tester to the end point by the same route. In the third phase, they were asked to describe verbally the route. In the final phase, they were asked to remember the specific colours at their correct locations. It was found that colour has a significant effect on children's wayfinding performances in school environments. However, there were no differences between different colours in terms of their remembrances in route finding tasks. In addition, the correct identifications of specific colours and landmarks were dependent on their specific locations. Contrary to the literature, gender differences were not found to be significant in the accuracy of route learning performances.
Open Access
Colour semantics in residential interior architecture on different interior types
(Wiley, 2020-04) Ulusoy, B.; Olguntürk, Nilgün; Aslanoğlu, Rengin
Colour meaning is a challenging decision in interior architecture during the design process; however, specific meanings within different interior types have not yet been investigated. This study explored colour meaning in the context of residential interior types (eg, bedroom) under controlled conditions using 42 Munsell colours varying in hues, value, and chroma levels, with 14 adjectives (eg, comfortable, pleasant). The results demonstrate that some colours convey the same meanings (eg, vulgar) regardless of type of room; however, others (eg, beautiful) tend to require more complicated and sophisticated colour applications in different residential interiors. The study findings proved that colour meaning in RITs can be affected by all colour attributes. All colours that are named orange and red are selected for both negative and positive meanings. Colours that are named purple are selected less and only for negative connotations. The findings present an overall colour meaning guide for these residential interior types, which will be beneficial for decision makers (interior architects, designers, users) and colour researchers.
Open Access
Colour-emotion associations in interior spaces
(2011) Helvacıoğlu, Elif
Colour as an effective design tool influences people’s emotions in interior spaces. Depending on the assumption that colour has an impact on human psychology, this study stresses the need for further studies that comprise colour and emotion association in interior space in order to provide healthier spaces for inhabitants. Emotional reactions to colour in a living room were investigated by using self report measure. Pure red, green and blue were chosen to be investigated as chromatic colours, whereas gray was the achromatic colour used as a control variable. The study was conducted at Bilkent University in Ankara, Turkey. Hundred and eighty people from various ages and academic departments participated in the study. Participants first watched a short video showing an overlook of a 3D model of a living room. Next, they were asked to match the distinct coloured living rooms with facial expressions of six basic emotions that covers anger, disgust, surprise, happiness, fear, sadness and in addition with neutral. The results of the study indicated that the most stated emotions associated for the room with red walls were disgust and happiness, while the least stated emotions were sadness, fear, anger, and surprise. Neutral and happiness were the most stated emotions for the room with green walls and anger, surprise, fear and sadness were the least stated ones. The most stated emotion associated for the room with blue walls was neutral, while the least stated emotions were anger and surprise. Neutral, disgust and sadness were the most stated emotions for the room with gray walls. Gender differences were not found in human emotional reactions to living rooms with different wall colours.
Open Access
Combinatorial reductions between graph partitioning by vertex separator and hypergraph partitioning problems for parallel and scientific computing applications
(2009) Kayaaslan, Enver
Colour as an effective design tool influences people’s emotions in interior spaces. Depending on the assumption that colour has an impact on human psychology, this study stresses the need for further studies that comprise colour and emotion association in interior space in order to provide healthier spaces for inhabitants. Emotional reactions to colour in a living room were investigated by using self report measure. Pure red, green and blue were chosen to be investigated as chromatic colours, whereas gray was the achromatic colour used as a control variable. The study was conducted at Bilkent University in Ankara, Turkey. Hundred and eighty people from various ages and academic departments participated in the study. Participants first watched a short video showing an overlook of a 3D model of a living room. Next, they were asked to match the distinct coloured living rooms with facial expressions of six basic emotions that covers anger, disgust, surprise, happiness, fear, sadness and in addition with neutral. The results of the study indicated that the most stated emotions associated for the room with red walls were disgust and happiness, while the least stated emotions were sadness, fear, anger, and surprise. Neutral and happiness were the most stated emotions for the room with green walls and anger, surprise, fear and sadness were the least stated ones. The most stated emotion associated for the room with blue walls was neutral, while the least stated emotions were anger and surprise. Neutral, disgust and sadness were the most stated emotions for the room with gray walls. Gender differences were not found in human emotional reactions to living rooms with different wall colours.
Open Access
Pairing colours in residential architecture for different interior types
(John Wiley & Sons, 2021-03-09) Ulusoy, B.; Aslanoğlu, Rengin
Most colour studies focus on single colour effects; however, interiors are multi-coloured environments and contemporary users are looking for more innovative colour schemes in interiors. Interior architects rely on their own subjective experience and instincts when they take up the challenge. This study aims to reveal colour semantics of paired colours on walls for different residential interior types (eg, living room) as a second part of the previous study conducted by the same authors. Both studies explore colour semantics through 42 Munsell colours (with variety of hues, value, and chroma levels) with 14 adjectives (eg, beautiful, unpleasant, cold) under controlled conditions. The predecessor study had explored single colour meanings, however, in this study, participants were asked to pair colours for the same residential interior types on the same semantic scales. Thus, its results can be compared to single colour data on different residential interior types through same methodology and participants. Results reveal that all colour attributes affect semantics paired wall colours. Orange is associated with negative meanings more whereas yellow hue induces positive meanings more for all adjective pairs, except cold-warm and feminine-masculine. For positive association, lighter colours and less saturated colours are selected more compared to saturated and darker colours. Comparing results of single colour study and the current study reveals that pairs cannot be anticipated through single colours for all residential interior types and adjectives, and positive adjectives tend to require different colours than their single associations in their pairs.
Open Access
Structural tuning of color chromaticity through nonradiative energy transfer by interspacing CdTe nanocrystal monolayers
(American Institute of Physics, 2009-02-09) Cicek, N.; Nizamoglu, S.; Ozel, T.; Mutlugun, E.; Karatay, D. U.; Lesnyak, V.; Otto, T.; Gaponik N.; Eychmuller, A.; Demir, Hilmi Volkan
We proposed and demonstrated architectural tuning of color chromaticity by controlling photoluminescence decay kinetics through nonradiative Forster resonance energy transfer in the heterostructure of layer-by-layer spaced CdTe nanocrystal (NC) solids. We achieved highly sensitive tuning by precisely adjusting the energy transfer efficiency from donor NCs to acceptor NCs via controlling interspacing between them at the nanoscale. By modifying decay lifetimes of donors from 12.05 to 2.96 ns and acceptors from 3.68 to 14.57 ns, we fine-tuned chromaticity coordinates from (x,y)=(0.575,0.424) to (0.632, 0.367). This structural adjustment enabled a postsynthesis color tuning capability, alternative or additive to using the size, shape, and composition of NCs.
Open Access
Warmth perception in association with colour and material
(2016-08) Ulusoy, Begüm
Warmth perception is physical, emotional, semantic, and sensorial bond between people and their environments. Warmth is a prominent characteristic of interior architecture and is related to colours and materials. Although the effects of single colours and single materials on warmth have been explored, colours and materials rarely appear alone in interiors and there has been no research on how paired colours and paired materials affect warmth perception in interiors. Therefore, the main aim of this study is to investigate their effects through a seven-point semantic differential scale and open ended questions.192 different participants assessed three different colours (red, white, and green), and their pairs or three different materials (fabric, timber, and plasterboard), and their pairs under controlled conditions. Findings demonstrated that single colours and paired colours both affect warmth perception in interiors. The effects of single colours in interiors are subtle in warmth perception: red is perceived warmer than green and green is perceived warmer than white. All single colours have a moderate level of warmth in interiors as pairs, consequently red (warm colour) appears to increase and white (achromatic colour) appears to decrease the warmth perception of their pairs. Furthermore, as single materials timber and fabric have the same level of warmth and are warmer than plasterboard whereas there is not any difference between pairs. Findings indicated that natural materials are perceived warmer than artificial one.