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Text File  |  1996-12-30  |  435b  |  15 lines
  1.  
  2. For this end-stopped cell, 
  3. stimulating the middle 
  4. activating region alone with an 
  5. optimally oriented slit produces 
  6. a strong response. Including 
  7. one of the inhibitory regions 
  8. almost nullifies the response, 
  9. but if the inhibitory region is 
  10. stimulated with a different 
  11. orientation, the response is no 
  12. longer blocked. Thus the 
  13. activating region and the 
  14. inhibitory regions both have 
  15. the same optimal orientations.