Cited by 179Laser Applications in Dentistry and MedicineTranscranial Magnetic Stimulation StudiesPhotodynamic Therapy Research Studies

Improving executive function using transcranial infrared laser stimulation

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Blanco, Nathaniel J., Maddox, W. Todd, Gonzalez‐Lima, Francisco·2017·Journal of Neuropsychology

Abstract

Transcranial infrared laser stimulation is a new non‐invasive form of low‐level light therapy that may have a wide range of neuropsychological applications. It entails using low‐power and high‐energy‐density infrared light from lasers to increase metabolic energy. Preclinical work showed that this intervention can increase cortical metabolic energy, thereby improving frontal cortex‐based memory function in rats. Barrett and Gonzalez‐Lima (2013, Neuroscience, 230 , 13) discovered that transcranial laser stimulation can enhance sustained attention and short‐term memory in humans. We extend this line of work to executive function. Specifically, we ask whether transcranial laser stimulation enhances performance in the Wisconsin Card Sorting Task that is considered the gold standard of executive function and is compromised in normal ageing and a number of neuropsychological disorders. We used a laser of a specific wavelength (1,064 nm) that photostimulates cytochrome oxidase – the enzyme catalysing oxygen consumption for metabolic energy production. Increased cytochrome oxidase activity is considered the primary mechanism of action of this intervention. Participants who received laser treatment made fewer errors and showed improved set‐shifting ability relative to placebo controls. These results suggest that transcranial laser stimulation improves executive function and may have exciting potential for treating or preventing deficits resulting from neuropsychological disorders or normal ageing.

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  • Cryptochrome, the proposed site of the avian compass, is also present in humans.

    “Cryptochrome, the proposed site of the avian compass, is also present in humans 169 .”

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Authors
Blanco, N. J., Maddox, W. T., & Gonzalez‐Lima, F.
Affiliations
  • The University of Texas at Austin (US)
  • Department of Psychology The University of Texas at Austin Texas USA
Venue
Journal of Neuropsychology
Publisher
Wiley
Published
2015-05-28
Volume
11
Issue
1
Pages
14-25
ISSN
  • 1748-6645 (ISSN-L)
  • 1748-6653
OpenAlex
W2118178033
Cited by
179
References
51
Citations by year
2026: 14 · 2025: 20 · 2024: 19 · 2023: 17 · 2022: 20 · 2021: 22 · 2020: 12 · 2019: 22 · 2018: 12 · 2017: 13 · 2016: 8
FWCI
8.92
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuropsychology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • College of Liberals Arts of the University of Texas
  • National Institute on Drug Abuse at the National Institute of Health (DA032457, DA032457-01A1S1)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Laser Applications in Dentistry and Medicine
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
Keywords
low-level laser therapy, executive function, cytochrome c oxidase, set-shifting, Wisconsin Card Sorting Test, sustained attention, short-term memory, normal aging, neuropsychological disorders
MeSH terms
Adolescent, Dose-Response Relationship, Radiation, Electroencephalography, Female, Frontal Lobe, Humans, Male, Neuropsychological Tests, Single-Blind Method, Prefrontal Cortex, Low-Level Light Therapy, Young Adult, Executive Function

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