A Coggle Diagram about anatomy (Connect to rest of brain via Cerebral peduncles , vestibular cerebellum / caudal inferior lobe :3 !!
--> caudal inferior lobe of cerebellum
--> gets input form vestibular nucleus
--> oldest part of cerebellum , Spinocerebellum
-> middle part is called "vermis",
Output Pathways, cerebrocerebellum and cerebrocerebellum), How it works (projects to two parts: , Input from pontine nucleus , Main function and Indirectly influences movement by modifying activity in the cortex !),
about why can't you tickle yourself and
TMS in the diagnosis of ataxia
--> ataxia = forward model not working so lagging movement !! ---> leads to hypermetric (overshooting target) or hypometic (undershooting target <-- often happens when dmg to spinocerebellum!!
--> deep cerebellar inhibition
--> works because there is a "fronto-pontine-cerebello-thalamo-cortical loop"),
Forward model (they moved their arm widely so cerebellum pre predicted where the arm woul dmove next so that when signal came form teh expected postion the arm could be super acurately moved onto the exact target location !!
using tms on cerebellum made them overshoot the tarkget (hypermetric movement) a bit BECAUSE !! it takes 50 ms (NEGATIVE FEEDBACK CONTROL in stein ereader :3 !!) for new info of location to be send to brain ( , so without the cerebellum pre predicting where arm is going to be the arm when movement is initated might already be at a slightly different location and thus miss the target by that location differences caused by the slight time delay of 50ms :D!! !! and --> ataxia = forward model not working so lagging movement !!
---> leads to hypermetric (overshooting target) or hypometic (undershooting target <-- often happens when dmg to spinocerebellum!!
--> can also be seen with TMS study mentioned above ) and Pontine nucleus (all this info converges in Pontine nuclei in the pons Which then in turn feeds this info to cerebellum :3!!
--> Axons arising from layer V pyramidal cells in the sensorimoCor cortex—frontal areas 4 and 6, somatosen- sory areas on the postcentra)gyxus, and the posterior parietal areas)