Causes

Brain lesions

Akinetopsia is an acquired arrears from lesions in the afterwards ancillary of the beheld cortex. The neurons of the average banausic case acknowledge to affective stimuli and appropriately the average banausic case is the motion-processing breadth of the bookish cortex. In the case of LM, the academician bane was mutual and symmetrical, and at the aforementioned time baby abundant not to affect added beheld functions.7 Some unilateral lesions accept been appear to blemish motion acumen as well. Akinetopsia through lesions is rare, because accident to the occipital affiliate usually disturbs added than one beheld function.5 Akinetopsia has aswell been appear as a aftereffect of alarming academician injury.6

editTranscranial alluring stimulation

Akinetopsia can be selectively and briefly induced application transcranial alluring dispatch (TMS) of breadth V5 in advantageous subjects.8 It is performed on a 1 cm2 apparent of the head, agnate in position to breadth V5. With an 800 micro-second TMS beating and a 28 ms bang at 11 degrees per second, V5 is bedridden for about 20-30 ms. It is able amid −20ms to +10ms afore and afterwards access of a affective beheld stimulus. Inactivating V1 with TMS could abet some amount of akinetopsia 60-70 ms afterwards the access of the beheld stimulus. TMS of V1 is not about as able in inducing akinetopsia than TMS of V5.8

editAlzheimer's disease

Besides anamnesis problems, Alzheimer's patients may accept capricious degrees of akinetopsia.9 This could accord to their apparent disorientation. While Pelak and Hoyt accept recorded an Alzheimer's case study, there has not been abundant analysis done on the accountable as of yet.6