眼睛暴露于富含蓝光的光线下会对神经活动和空间注意力产生不对称影响。

Newman Daniel P, Lockley Steven W, Loughnane Gerard M, Martins Ana Carina P, Abe Rafael, Zoratti Marco T R, Kelly Simon P, O'Neill Megan H, Rajaratnam Shantha M W, O'Connell Redmond G, Bellgrove Mark A

Monash Institute for Cognitive and Clinical Neurosciences (MICCN), School of Psychological Sciences, Monash University, Melbourne, Australia.

Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, USA and Division of Sleep Medicine, Harvard Medical School, Boston, USA.

Sci Rep. 2016 Jun 13;6:27754. doi: 10.1038/srep27754.

Brain networks subserving alertness in humans interact with those for spatial attention orienting. We employed blue-enriched light to directly manipulate alertness in healthy volunteers. We show for the first time that prior exposure to higher, relative to lower, intensities of blue-enriched light speeds response times to left, but not right, hemifield visual stimuli, via an asymmetric effect on right-hemisphere parieto-occipital α-power. Our data give rise to the tantalising possibility of light-based interventions for right hemisphere disorders of spatial attention.

人类中维持警觉的脑网络与空间注意力定向的脑网络相互作用。我们采用富含蓝光的光直接操控健康志愿者的警觉性。我们首次表明，相对于较低强度，预先暴露于较高强度的富含蓝光的光可加快对左半视野视觉刺激的反应时间，但对右半视野视觉刺激无此作用，这是通过对右半球顶枕部α波功率的不对称影响实现的。我们的数据引发了基于光的干预治疗右半球空间注意力障碍的诱人可能性。