The problem of interest is the relationship of the subjective world of humans to “the objective world” and how this is in different cultures over the last 6000 years.
Touch, hearing, sight, taste, smell and proprioception denote the categories of human perception that can be clearly distinguished from each other by most adult humans and that are linked to separate physical or chemical stimuli. Across different cultures these perceptual modes can be identified in language.
How does the neural organisation in receptive fields affect the representation of the world in the auditory and the visual system? Which features can a mind extract that is constrained by retinotopic and tonotopic organisation?
How are the symbolic properties of language connected to this?
How do awareness and meaning emerge from such feedback loops?