Interestingly, sensory information used to control actions is processed in neural pathways separate from the afferent pathways that contribute to conscious perception.2 For example, visual information seems to flow in two separate streams in the brain: a dorsal stream projecting to the posterior parietal lobe cortex is involved in the use of vision for action, while a ventral stream projecting to the inferotemporal cortex is instrumental in conscious visual perception.2 Damage to one does not have to impact the flow of sensory information in the other: research has shown that a person with a damaged ventral stream may be unable to indicate the position of a slot carved into a box either verbally or with their hand, but has no problem manoeuvring their hand appropriately to put a card through the slot.2

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