TY - JOUR PY - 2016// TI - Decreased resting state metabolic activity in frontopolar and parietal brain regions is associated with suicide plans in depressed individuals JO - Journal of psychiatric research A1 - van Heeringen, Cornelis Kees A1 - Wu, Guo-Rong A1 - Vervaet, Myriam A1 - Vanderhasselt, Marie-Anne A1 - Baeken, Chris SP - 243 EP - 248 VL - 84 IS - N2 - Suicide plans are a major risk factor for suicide, which is a devastating outcome of depression. While structural and functional brain changes have been demonstrated in relation to suicidal thoughts and behaviour, brain mechanisms underlying suicide plans have not yet been studied. Here, we studied changes in regional cerebral metabolic activity in association with suicide plans in depressed individuals. Using (18)FDG-PET, a comparative study of regional cerebral glucose metabolism (rCMRglu) was carried out in depressed individuals with suicidal thoughts and suicide plans, depressed individuals with only suicidal thoughts, depressed individuals without suicide thoughts and plans, and healthy controls. When compared to the other groups, depressed individuals with suicide plans showed relative hypometabolism in the right middle frontal gyrus and the right inferior parietal lobe (Brodmann areas 10 and 39). Suicide plans in depressed individuals appear to be associated with reduced activity in brain areas that are involved in decision-making and choice, more particularly in exploratory behaviour.

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Language: en

LA - en SN - 0022-3956 UR - http://dx.doi.org/10.1016/j.jpsychires.2016.10.011 ID - ref1 ER -