Ocular exposure to blue-enriched light has an asymmetric influence on neural activity and spatial attention

Daniel P Newman, Steven W Lockley, Gerard M Loughnane, Ana Carina Pamplona Martins, Rafael Abe, Marco TR Zoratti, Simon P Kelly, Megan H O'Neill, Shanthakumar MW Rajaratnam, Redmond O'Connell, Mark A Bellgrove

Research output: Contribution to journalArticleResearchpeer-review

Abstract

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
Original languageEnglish
Article number27754
Number of pages10
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 13 Jun 2016

Keywords

  • Alertness
  • Attention
  • Asymmetry
  • Neglect

Cite this

Newman, Daniel P ; Lockley, Steven W ; Loughnane, Gerard M ; Martins, Ana Carina Pamplona ; Abe, Rafael ; Zoratti, Marco TR ; Kelly, Simon P ; O'Neill, Megan H ; Rajaratnam, Shanthakumar MW ; O'Connell, Redmond ; Bellgrove, Mark A. / Ocular exposure to blue-enriched light has an asymmetric influence on neural activity and spatial attention. In: Scientific Reports. 2016 ; Vol. 6.
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abstract = "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",
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Ocular exposure to blue-enriched light has an asymmetric influence on neural activity and spatial attention. / Newman, Daniel P; Lockley, Steven W; Loughnane, Gerard M; Martins, Ana Carina Pamplona; Abe, Rafael; Zoratti, Marco TR; Kelly, Simon P; O'Neill, Megan H; Rajaratnam, Shanthakumar MW; O'Connell, Redmond; Bellgrove, Mark A.

In: Scientific Reports, Vol. 6, 27754, 13.06.2016.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Ocular exposure to blue-enriched light has an asymmetric influence on neural activity and spatial attention

AU - Newman, Daniel P

AU - Lockley, Steven W

AU - Loughnane, Gerard M

AU - Martins, Ana Carina Pamplona

AU - Abe, Rafael

AU - Zoratti, Marco TR

AU - Kelly, Simon P

AU - O'Neill, Megan H

AU - Rajaratnam, Shanthakumar MW

AU - O'Connell, Redmond

AU - Bellgrove, Mark A

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Y1 - 2016/6/13

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AB - 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

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KW - Attention

KW - Asymmetry

KW - Neglect

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