McLuhan's metaphor for the relative dominance of the various human senses within the human ‘sensorium’. He argued that different media extend different senses, and their ‘interiorization’ transforms mental processes. He phonocentrically romanticized oral cultures, and saw writing and printing as having led to an ocularcentrism which disrupted what he saw as the natural balance of the senses. He also saw electronic media as restoring this balance by ‘stimulating all the senses simultaneously’. See also McLuhanism.