PROBLEM TO BE SOLVED: To provide an adjustment member capable of securing the degree of adhesion in a measurement part to various types of heads, easily and simply, and a brain function measurement device.SOLUTION: An adjustment member 200 adjusts the degree of adhesion in a measurement part of a brain function measurement device to a head in the brain function measurement device attached to the head. The adjustment member 200 includes an attachment part 201 in which the adjustment member 200 is detachably attached to the brain function measurement device, and an adjustment body part 210 for adjusting an angle of the measurement part to the head so as to adjust the degree of adhesion in the measurement part to the head.【課題】様々なタイプの頭部に対する測定部の密着度を容易且つ簡単に確保できる調整部材及び脳機能測定装置を提供すること。【解決手段】調整部材２００は、頭部に装着される脳機能測定装置において、頭部に対する脳機能測定装置の測定部の密着度を調整する。調整部材２００は、調整部材２００を脳機能測定装置に着脱自在に取り付ける取付部２０１と、頭部に対する測定部の密着度が調整されるように、頭部に対する測定部の角度を調整する調整本体部２１０とを具備する。【選択図】図７Ａ
