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Lighting to Make You Feel Better: Improving the Mood of Elderly People with Affective Ambiences.

Kuijsters A, Redi J, de Ruyter B, Heynderickx I - PLoS ONE (2015)

Bottom Line: We hypothesized that ambiences with a clearly recognizable, positive affective meaning could be used to effectively mitigate negative mood in elderly.In line with our hypothesis we found that the activating ambience was physiologically more arousing than the neutral ambience.The cozy ambience was more effective in calming anxious elderly than the neutral ambience, as reflected by both the self-reported and physiological measurements.

View Article: PubMed Central - PubMed

Affiliation: Human Technology Interaction Group, Industrial Engineering and Innovation Science, Eindhoven University of Technology, Eindhoven, the Netherlands.

ABSTRACT
Current lighting technologies extend the options for changing the appearance of rooms and closed spaces, as such creating ambiences with an affective meaning. Using intelligence, these ambiences may instantly be adapted to the needs of the room's occupant(s), possibly improving their well-being. We hypothesized that ambiences with a clearly recognizable, positive affective meaning could be used to effectively mitigate negative mood in elderly. After inducing a sad mood with a short movie one group of elderly was immersed in a positive high arousing (i.e., activating) ambience, and another group in a neutral ambience. Similarly, after inducing anxiety with a short movie one group of elderly was immersed in a pleasant low arousing (i.e., cozy) ambience, and another group in a neutral ambience. We monitored the evolution of the mood of the four groups of elderly over a period of ten minutes after the mood induction, with both self-reported mood measurements (every 2 minutes) and constant measurements of the skin conductance response (SCR) and electrocardiography (ECG). In line with our hypothesis we found that the activating ambience was physiologically more arousing than the neutral ambience. The cozy ambience was more effective in calming anxious elderly than the neutral ambience, as reflected by both the self-reported and physiological measurements.

No MeSH data available.


An impression of the activating ambience (left) and cozy ambience (right).
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pone.0132732.g003: An impression of the activating ambience (left) and cozy ambience (right).

Mentions: We used ambiences (pictured in Fig 3) for which we had confirmation that elderly could clearly recognize their atmosphere. These ambiences were designed and validated in a previous study [12]. The cozy ambience consisted of functional lighting at a lower illuminance (i.e., 120 lx) and lower CT (i.e., 2700 K), to which we added orange colored accent lighting. The Gemini lamp did not illuminate the dinner table in the cozy ambience. The cozy ambience was perceived as a pleasant low arousing ambience, as reflected by high coziness scores in the atmosphere questionnaire [12]. Coziness was found to be positively correlated with positive valence and negatively correlated with arousal [12]. The activating ambience consisted of functional lighting at a higher illuminance (i.e., 325 lx) and a higher CT (i.e., 4000 K), to which we added cyan colored accent lighting [12]. The activating ambience was perceived as a pleasant high arousing ambience, as reflected by high liveliness scores in the atmosphere questionnaire. Liveliness was found to be positively correlated with both valence and arousal [12]. The neutral ambience consisted of functional white lighting with an intermediate illuminance (i.e., 150 lx) and intermediate CT (i.e., 3400 K), and here we added white accent lighting. Pilot tests revealed that this ambience was scored neutral on both coziness and liveliness in the atmosphere questionnaire [11]. The reported illuminance and CT values were all measured vertically at the position of the participant’s eyes. More details about the design and validation of the cozy and activating ambiences can be found in [12].


Lighting to Make You Feel Better: Improving the Mood of Elderly People with Affective Ambiences.

Kuijsters A, Redi J, de Ruyter B, Heynderickx I - PLoS ONE (2015)

An impression of the activating ambience (left) and cozy ambience (right).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4507869&req=5

pone.0132732.g003: An impression of the activating ambience (left) and cozy ambience (right).
Mentions: We used ambiences (pictured in Fig 3) for which we had confirmation that elderly could clearly recognize their atmosphere. These ambiences were designed and validated in a previous study [12]. The cozy ambience consisted of functional lighting at a lower illuminance (i.e., 120 lx) and lower CT (i.e., 2700 K), to which we added orange colored accent lighting. The Gemini lamp did not illuminate the dinner table in the cozy ambience. The cozy ambience was perceived as a pleasant low arousing ambience, as reflected by high coziness scores in the atmosphere questionnaire [12]. Coziness was found to be positively correlated with positive valence and negatively correlated with arousal [12]. The activating ambience consisted of functional lighting at a higher illuminance (i.e., 325 lx) and a higher CT (i.e., 4000 K), to which we added cyan colored accent lighting [12]. The activating ambience was perceived as a pleasant high arousing ambience, as reflected by high liveliness scores in the atmosphere questionnaire. Liveliness was found to be positively correlated with both valence and arousal [12]. The neutral ambience consisted of functional white lighting with an intermediate illuminance (i.e., 150 lx) and intermediate CT (i.e., 3400 K), and here we added white accent lighting. Pilot tests revealed that this ambience was scored neutral on both coziness and liveliness in the atmosphere questionnaire [11]. The reported illuminance and CT values were all measured vertically at the position of the participant’s eyes. More details about the design and validation of the cozy and activating ambiences can be found in [12].

Bottom Line: We hypothesized that ambiences with a clearly recognizable, positive affective meaning could be used to effectively mitigate negative mood in elderly.In line with our hypothesis we found that the activating ambience was physiologically more arousing than the neutral ambience.The cozy ambience was more effective in calming anxious elderly than the neutral ambience, as reflected by both the self-reported and physiological measurements.

View Article: PubMed Central - PubMed

Affiliation: Human Technology Interaction Group, Industrial Engineering and Innovation Science, Eindhoven University of Technology, Eindhoven, the Netherlands.

ABSTRACT
Current lighting technologies extend the options for changing the appearance of rooms and closed spaces, as such creating ambiences with an affective meaning. Using intelligence, these ambiences may instantly be adapted to the needs of the room's occupant(s), possibly improving their well-being. We hypothesized that ambiences with a clearly recognizable, positive affective meaning could be used to effectively mitigate negative mood in elderly. After inducing a sad mood with a short movie one group of elderly was immersed in a positive high arousing (i.e., activating) ambience, and another group in a neutral ambience. Similarly, after inducing anxiety with a short movie one group of elderly was immersed in a pleasant low arousing (i.e., cozy) ambience, and another group in a neutral ambience. We monitored the evolution of the mood of the four groups of elderly over a period of ten minutes after the mood induction, with both self-reported mood measurements (every 2 minutes) and constant measurements of the skin conductance response (SCR) and electrocardiography (ECG). In line with our hypothesis we found that the activating ambience was physiologically more arousing than the neutral ambience. The cozy ambience was more effective in calming anxious elderly than the neutral ambience, as reflected by both the self-reported and physiological measurements.

No MeSH data available.