Radziun Dominika, Crucianelli Laura, Ehrsson H Henrik
Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Biol Psychol. 2022 Feb;168:108248. doi: 10.1016/j.biopsycho.2021.108248. Epub 2021 Dec 28.
In the present study, we investigated the effect of short-term visual deprivation on discriminative touch, cardiac interoception, and thermosensation by asking 64 healthy volunteers to perform four behavioral tasks. The experimental group contained 32 subjects who were blindfolded and kept in complete darkness for 110 min, while the control group consisted of 32 volunteers who were not blindfolded but were otherwise kept under identical experimental conditions. Both groups performed the required tasks three times: before and directly after deprivation (or control) and after an additional washout period of 40 min, in which all participants were exposed to normal light conditions. Our results showed that short-term visual deprivation had no effect on any of the senses tested. This finding suggests that short-term visual deprivation does not modulate basic bodily senses and extends this principle beyond tactile processing to the interoceptive modalities of cardiac and thermal sensations.
在本研究中,我们通过让64名健康志愿者执行四项行为任务,来探究短期视觉剥夺对辨别性触觉、心脏内感受和温度感觉的影响。实验组有32名受试者,他们被蒙上眼睛并在完全黑暗的环境中保持110分钟,而对照组由32名志愿者组成,他们没有被蒙上眼睛,但在其他方面处于相同的实验条件下。两组都将所需任务执行三次:在剥夺(或对照)之前、剥夺(或对照)之后立即以及在额外的40分钟洗脱期之后,在此期间所有参与者都暴露在正常光照条件下。我们的结果表明,短期视觉剥夺对所测试的任何一种感觉都没有影响。这一发现表明,短期视觉剥夺不会调节基本的身体感觉,并将这一原理从触觉处理扩展到心脏和热感觉的内感受模式。