, . , , , . . 2 . . (Xi), . (cue input), , , . . ( 0), . (teacher input), (V 0 = 1), (response output). , (Xi), (Y). . , (Δ Vi) . Δ Vi = iY, (0 < < 1).
. 2. , Xi , Vi , 0 , a Y
, . . : (), (the Rescorla Wagner rule), (the Widrow Hoff rule) (least-mean squares rule). Δ Vi = (V0X0 Σ [ Vi Xi ]) X i. , (Σ [ Vi Xi ]) , (V 0 X 0), (Δ Vi). , , .
(error-correction rule) , , 3 . .
1. . , - , . , - .
2. . , , ( ). , , ( 0) , . , , , (-Σ [ Vi Xi ]), (Vi). . ., .
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3. . , . , , . ., , (V 0 X 0 Σ [ Vi Xi ]) , . . ., . , , . , , , .-. .