The way many sensory organs work naturally provides a homomorphic mapping from the location of a stimulus into the population of peripheral sensory neurons:
The location of a visual stimulus determines which part of the retina is stimulated.
The identity of a peripheral somesthetic neuron immediately identifies the location of sensory stimulation on the body surface.⇒
The identity of peripheral auditory neurons responding to an auditory stimulus is not dependent on the location of that stimulus.
Instead, localization cues must be extracted from the temporal dynamics and spectral properties of binaural auditory signals.
This is in contrast with visual and somesthetic localization.⇒
Himmelbach et al. studied one patient in a visuo-haptic grasping task and found that she had a healthy-like ability to adapt her grip online to changes of object size when it was in the central viewing field. This indicates that the problem for patients with lesions of parieto-occipital cortex (POJ) is not an inability to adapt online, but more likely the connection between visuomotor pathways and pathways necessary for grasping. ⇒