Biological information measurement device and non-transitory computer readable medium

A biological information measurement device comprising:

• a correction unit that receives a first signal expressing a change in an amount of light of a first wavelength detected from a living body and a second signal expressing a change in an amount of light of a second wavelength detected from the living body, and corrects at least one of the first signal and the second signal to reduce a difference between an amount of change in the first signal and an amount of change in the second signal associated with a change in an amount of arterial blood of the living body;
• and
• a detection unit that, after an amount of oxygen inhaled by the living body changes, detects an inflection point in a blood oxygen concentration obtained from the first signal and the second signal of which at least one is corrected by the correction unit.

A non-transitory computer readable medium storing a program causing a computer to execute a process for measuring biological information, the process comprising:

• receiving a first signal expressing a change in an amount of light of a first wavelength detected from a living body and a second signal expressing a change in an amount of light of a second wavelength detected from the living body, and correcting at least one of the first signal and the second signal to reduce a difference between an amount of change in the first signal and an amount of change in the second signal associated with a change in an amount of arterial blood of the living body;
• and
• computing a change in a blood oxygen concentration in the living body on a basis of the first signal and the second signal of which at least one is corrected.