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Relationships Between Gum Chewing and Stroop Test: A Pilot Study.

Y Kawakami1, T Takeda2, M Konno2

  • 1Department of Sports Dentistry, Tokyo Dental College, Chiba, Japan. kawakamiyoshiaki@tdc.ac.jp.

Advances in Experimental Medicine and Biology
|July 8, 2017
PubMed
Summary
This summary is machine-generated.

Chewing gum may enhance cognitive function by increasing cerebral blood flow and reaction speed during cognitive tasks. This study found gum chewing significantly improved performance on the Stroop test.

Keywords:
Cognitive functionGum- chewingNear-infrared spectroscopyStroop testThe left dorsolateral prefrontal cortex

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Physiology

Background:

  • Cognitive decline with aging is a significant societal concern.
  • The impact of chewing, specifically gum chewing, on cognitive function remains debated.
  • The Stroop test is a standard measure of cognitive performance, and functional near-infrared spectroscopy (fNIRS) can measure brain activity.

Purpose of the Study:

  • To investigate if gum chewing alters cerebral blood flow in the left dorsolateral prefrontal cortex (DLPFC) during the Stroop test.
  • To determine if gum chewing affects reaction time in the Stroop test.

Main Methods:

  • Fourteen healthy volunteers performed a computerized Stroop test.
  • Cerebral blood flow was monitored using fNIRS, focusing on the left DLPFC.
  • Reaction times were automatically recorded, and data were analyzed using the Binomial test.

Main Results:

  • The Stroop task activated the left DLPFC.
  • Gum chewing significantly increased oxy-hemoglobin (oxy-Hb) concentration, indicating increased blood flow.
  • Gum chewing significantly shortened reaction times during the Stroop test.

Conclusions:

  • Gum chewing appears to enhance cognitive performance during the Stroop test.
  • Increased cerebral blood flow in the left DLPFC during gum chewing may underlie improved cognitive function.
  • This suggests a potential non-pharmacological method for supporting cognitive function.