Neuroimagem na dependência de jogos eletrônicos: Uma revisão sistemática

Abstract

Objective: To perform a systematic review of manuscripts that used neuroimage to study the video game addiction in order to identify the main altered brain regions. Methods: Searches were realized in the following databases: ScieELO, BVS, Lilacs, Science Direct On Line and PubMed. There was no minimum date for the research, being considered articles founded until July 2013. The descriptors used for this systematic review were: "PET", "SPECT", "MRI", "DTI", "EEG", "imaging", "neuroimaging", "spectroscopy", "functional magnetic resonance", "structural magnetic resonance", "tractography", "voxel" and "brain", individually crossed with descriptors "gaming" and "video game addiction". Results: Of the 52 articles founded, 16 were selected: nine used fMRI, four used sRMI, one used PET and two used EEG. In relation of the functional and structural changes, they were more often observed in the frontal lobe (dorsolateral prefrontal cortex, orbitofrontal cortex, prefrontal gyrus, middle frontal gyrus), parietal, temporal (parahippocampal gyrus), basal ganglia, thalamus, insula and cerebellum. Conclusion: Regardless the methods utilized, the studies pointed convergences regarding reciprocity brain. These neural changes are similar to those observed in patients with substance addiction and internet addiction, especially during craving. Although only recently neuroimaging researches on game addicts were realized, we count at the moment with significant findings aligned with the understanding of the neural mechanisms associated with video game addiction and its inclusion as a nosological category in psychiatric scope.