Neuro-cognitive Ramifications of Fasting and Feeding in obese and non-obese cases
Seyed-Ali Mostafavi 1, Ali Khaleghi 1*, Safa Rafiei Vand 2, Seyyed Salman Alavi 1, Mohammad Reza Mohammadi 1
1Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran, 2Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
Received: April 19, 2017; Revised: June 29, 2017; Accepted: July 14, 2017; Published online: July 14, 2017.
© The Korean College of Neuropsychopharmacology. All rights reserved.

Abstract
Preliminary studies have claimed that short term fasting would negatively affect school performance and cognition. In contrast some other studies have reported not important decline in cognition and executive function as a result of fasting. Also limited attention was generally devoted to dietetic regimens, nutritional status and body weight. Yet neuroscience and neuro-cognitive aspects of acute hunger on the electroencephalogram and differences between obese and non-obese cases is not well understood. Hence, we decided to design and perform a case study in a more controlled situation similar to reality. Therefore, we performed several examinations including subjective tests (for eating status) and objective tests (cognitive tests such as stroop effect and Sternberg search and Electroencephalogram measures such as steady-state visual evoked potential and auditory steady-state responses) for an obese and a non-obese academic case before and after a simple breakfast. The results showed that the breakfast effects on the cognitive functions depend on either obesity status, nutritional status of the case or the type of cognitive task (visual or auditory). We think that this paper would open a new trend to answer some important questions about the neuro-cognitive functions and fasting impacts in human.
Keywords: EEG, Fasting, Feeding, Neuro-cognitive, obesity


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