Table 1.

Main groups of the neurons that responded at the appearance of the schedule fraction cue

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(1)XXX16
(2)XXX13
(3)XX6
(4)XXX3
(5)XX3
  • X indicates the schedule fraction in which the neuron responded to the appearance of the schedule fraction cue. Forty-one out of 47 neurons that responded to the appearance of the schedule fraction fell into five main groups. The numbers of neurons in each category were shown under n.