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3 EATING DISORDERS + LIGHT 3.3.4 ED + Sensitivity High sensitivity in nose, skin and temperature and observations from (Interview E, 00:06:28, 00:07:02) could suggest a high light sensitivity with connection to strong light and especially bright/glary/direct light. (Interview H, 00:13:50) If ED patients are more prone to sensitivity, quick transitions and high contrast could potentially feel highly uncomfortable. (Interview E, 00:24:18) This could also hypothetically create a better response to CL and transitions. In findings from Jewett et al 1997, “the timing of background room light modulates the resetting response to bright light” suggesting that contrast and transition time could be related, (Jewett et al., 1997) thus high sensitivity to bright light could lead to higher CL sensitivity. 3.3.5 ED + Body temperature Resent findings in CCT and Kelvin-temperatures and connection to the experienced temperature in a room could suggest that warm light (low K) should be used in common areas and private rooms. This could be benefi- cial for the severe freezing sensation in ED patients, but Bennet & Rey, 1972 present evidence that the heat/cold experience related to CCT is positively connected to effects, but argues this effect to be strictly intellectual, thus having no effect on actual thermal comfort. (Bennett and Rey, 1972) Thermal comfort might differ depending on activity, gender and culture. In a London study about perceived room temperature and energy optimisation, room conditions with bright white light (4000K) reported more comfortable than 2700K and 6200K. (Huebner et al., 2016) Focus on proper materials are also important, as white tables get colder than wood, creating problems for patients, as it is too cold for them to touch. (Interview E, 00:25:25) As white materials reflect more light than wood, this can add disturbance for sensitive eyes. This suggests that wooden surfaces could add thermal comfort for patients in furniture interaction and create a more relaxed visual environment. Research in body temperature, ED and light therapy is limited. Yamam- otov et al, 2008 showed an effect on rhythm synchronisation of temper- ature and hunger. In addition, ”phase advanced rhythm was delayed and phase delayed rhythm was advanced” and BLT normalised body temper- ature rhythms in both AN patients and BN patients with disruption. Future research on effects related to food-intake-rhythms in ED were suggested. (Yamamotov, Papezov and Vevera, 2008) Body temperature is controlled by the SCN and may contribute to phase setting of circadian escalators as proteins, detoxing connected to important circadian Zeitgebers. Findings from day-time feeding of nocturnal rodents suggest that food timing can influence the circadian rhythm over body tem- perature. The body temperature is strongly influenced by food intake, but both activity, rest and feeding and can sustain circadian clock gene activity. (Schibler et al., 2003) Master thesis · MSc Lighting Design · Pernille Bech-Larsen · Fall 2017 46PDF Image | Healing with light
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