Does the measurement have to be subconscious?
Can measurement such as eye-tracking be counted as physiological measurement? (I thought it is because of its relatively subconscious nature until I saw this.)
Physiology is a very broad term that includes neuroscience:
Physiology is the scientific study of the functions and mechanisms which work within a living system.
Within the cognitive sciences, physiology typically refers to non-behavioral inputs and outputs of the nervous system (including parts of the brain), but physiological measures may include behavior:
Physiological responses also can be measured via instruments that read bodily events such as heart rate change, electrodermal activity (EDA), muscle tension, and cardiac output. Many indices are part of modern psychophysiology, including brain waves (electroencephalography, EEG), fMRI (functional magnetic resonance imaging), electrodermal activity (a standardized term encompassing skin conductance response, SCR, and galvanic skin response, GSR), cardiovascular measures (heart rate, HR; beats per minute, BPM; heart rate variability, HRV; vasomotor activity), muscle activity (electromyography, EMG), electrogastrogram (EGG) changes in pupil diameter with thought and emotion (pupillometry), eye movements, recorded via the electro-oculogram (EOG) and direction-of-gaze methods, and cardiodynamics, recorded via impedance cardiography.