Abstract: A means for substantially improving mitochondrial dysfunction is provided. An aspect of the present invention relates to an agent for improving mitochondrial dysfunction, having a compound represented by the following formula, a stereoisomer or a salt thereof, or a solvate thereof, as an active ingredient. Another aspect of the present invention relates to a medicament or a pharmaceutical composition having the aforementioned compound, a stereoisomer or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, as an active ingredient, for use in preventing or treating a disease or symptom caused by mitochondrial dysfunction.

Abstract: Provided is a technique for computing a brain function index for diagnosing a mental disorder at the individual level, which can be applied to even a child around school age. A brain function index computing device includes a brain activity value calculation processing unit configured to calculate from brain activity signals of a subject a first brain activity value of a region including the meddle frontal gyrus (MFG) and a second brain activity value of a region including the inferior frontal gyrus (IFG); and a brain function index calculation processing unit configured to calculate a brain function index associated with a mental disorder using the first brain activity value and the second brain activity value.

Abstract: A means for substantially improving mitochondrial dysfunction is provided. An aspect of the present invention relates to an agent for improving mitochondrial dysfunction, having a compound represented by the following formula, a stereoisomer or a salt thereof, or a solvate thereof, as an active ingredient. Another aspect of the present invention relates to a medicament or a pharmaceutical composition having the aforementioned compound, a stereoisomer or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, as an active ingredient, for use in preventing or treating a disease or symptom caused by mitochondrial dysfunction.

Abstract: Provided herein is a technique for effectively and quantitatively evaluating the symptom improving effect of a treatment given to a subject (patient). The invention provides a technique for diagnosing, evaluating, monitoring, and predicting drug efficacy in individuals (patients) with possible mental disorders such as ADHD, autism, and depression. Specifically, patient's data are simultaneously analyzed using several variables, such as biological measurements (e.g., brain activity measurements) and cognitive performance assessments, involving, for example, a patient (dependent variable), a medication type and dose (independent variables), a diagnosis profile score (DSM) and a rating scale (manifest variables), and an efficacy index (a predictor variable of a future treatment).

Abstract: Provided is a technique for computing a brain function index for diagnosing a mental disorder at the individual level, which can be applied to even a child around school age. A brain function index computing device includes a brain activity value calculation processing unit configured to calculate from brain activity signals of a subject a first brain activity value of a region including the meddle frontal gyrus (MFG) and a second brain activity value of a region including the inferior frontal gyrus (IFG); and a brain function index calculation processing unit configured to calculate a brain function index associated with a mental disorder using the first brain activity value and the second brain activity value.