scholarly journals Role of Primate Substantia Nigra Pars Reticulata in Reward-Oriented Saccadic Eye Movement

2002 ◽  
Vol 22 (6) ◽  
pp. 2363-2373 ◽  
Author(s):  
Makoto Sato ◽  
Okihide Hikosaka
Keyword(s):  
Substantia Nigra ◽  
Eye Movement ◽  
Substantia Nigra Pars Reticulata ◽  
Saccadic Eye Movement

scholarly journals A dynamic, imperturbable link between midbrain activity and saccade velocity

2020 ◽  
Vol 123 (2) ◽  
pp. 451-453
Author(s):  
Joshua A. Seideman
Keyword(s):  
Eye Movement ◽  
Strong Evidence ◽  
Neural Control ◽  
Oculomotor Control ◽  
Saccadic Eye Movement ◽  
Saccade Velocity ◽  
Midbrain Structure ◽  
Instantaneous Control ◽  
Dynamic Moment

We make a saccadic eye movement once every few hundred milliseconds; however, the neural control of saccade execution is not fully understood. Dynamic, moment-by-moment variations in saccade velocity are typically thought to be controlled by neurons in the lower, but not the upper regions of the brainstem. In a recent report, Smalianchuk et al. (Smalianchuk I, Jagadisan UK, Gandhi NJ. J Neurosci 38: 10156–10167, 2018) provided strong evidence for a role of the superior colliculus, a midbrain structure, in the instantaneous control of saccade velocity, suggesting the revision of long-standing models of oculomotor control.

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