From neuro-pigments to neural efficiency: The relationship between retinal carotenoids and behavioral and neuroelectric indices of cognitive control in childhood

Anne M. Walk, Naiman A Khan, Sasha M. Barnett, Lauren B. Raine, Arthur F. Kramer, Neal J Cohen, Christopher J. Moulton, Lisa M. Renzi-Hammond, Billy R. Hammond, Charles H. Hillman

Research output: Contribution to journalArticle

Abstract

Lutein and zeaxanthin are plant pigments known to preferentially accumulate in neural tissue. Macular Pigment Optical Density (MPOD), a non-invasive measure of retinal carotenoids and surrogate measure of brain carotenoid concentration, has been associated with disease prevention and cognitive health. Superior MPOD status in later adulthood has been shown to provide neuroprotective effects on cognition. Given that childhood signifies a critical period for carotenoid accumulation in brain, it is likely that the beneficial impact would be evident during development, though this relationship has not been directly investigated. The present study investigated the relationship between MPOD and the behavioral and neuroelectric indices elicited during a cognitive control task in preadolescent children. 49 participants completed a modified flanker task while event-related potentials (ERPs) were recorded to assess the P3 component of the ERP waveform. MPOD was associated with both behavioral performance and P3 amplitude such that children with higher MPOD had more accurate performance and lower P3 amplitudes. These relationships were more pronounced for trials requiring greater amounts of cognitive control. These results indicate that children with higher MPOD may respond to cognitive tasks more efficiently, maintaining high performance while displaying neural indices indicative of lower cognitive load. These findings provide novel support for the neuroprotective influence of retinal carotenoids during preadolescence.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalInternational Journal of Psychophysiology
Volume118
DOIs
StatePublished - Aug 2017

Fingerprint

Carotenoids
Efficiency
P300 Event-Related Potentials
Lutein
Brain
Neuroprotective Agents
Evoked Potentials
Cognition
Macular Pigment
Health

Keywords

  • Carotenoids
  • Event-related potentials
  • Executive control
  • Lutein
  • Macular pigment optical density

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Physiology (medical)

Cite this

From neuro-pigments to neural efficiency : The relationship between retinal carotenoids and behavioral and neuroelectric indices of cognitive control in childhood. / Walk, Anne M.; Khan, Naiman A; Barnett, Sasha M.; Raine, Lauren B.; Kramer, Arthur F.; Cohen, Neal J; Moulton, Christopher J.; Renzi-Hammond, Lisa M.; Hammond, Billy R.; Hillman, Charles H.

In: International Journal of Psychophysiology, Vol. 118, 08.2017, p. 1-8.

Research output: Contribution to journalArticle

Walk, Anne M. ; Khan, Naiman A ; Barnett, Sasha M. ; Raine, Lauren B. ; Kramer, Arthur F. ; Cohen, Neal J ; Moulton, Christopher J. ; Renzi-Hammond, Lisa M. ; Hammond, Billy R. ; Hillman, Charles H. / From neuro-pigments to neural efficiency : The relationship between retinal carotenoids and behavioral and neuroelectric indices of cognitive control in childhood. In: International Journal of Psychophysiology. 2017 ; Vol. 118. pp. 1-8.
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