Phenomena oí ncur(jbi(jta.\iá in llic optic systcm 



293 



In other terms: temporal retinalfibers^ tliougli partially cooperating zvith 

 the oppositc nasal rctinal fields [uñth regará to lateral objects) miist equally 

 do so zvith tlie opposite temporal fibrcs zvlien medio-frontal objects are seen. 



c. 



Fig. 22. — I )iagraniniatic rcprcsentation ol' ihr conciirrence oí iincrosst'd temporal 

 retina fibers wilh crosscd nasal fibcrs (dotted lincs) in seeinjí lateral objects (A 

 and B) and the concurrcnce of nncrossed temporal fibers wich crossed temporal 

 fibers in sceing frontal objects (C). Eye-axes paralel. Neurobiotactic explanation 

 of the semidecusation of the optic nerves. 



