A Artificial Neural Network Analogue of Learning in Autism by knu24191

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									    A Artificial Neural Network
                                                          •
    Analogue of Learning in Autism                                    –
                                                                      –

    Ira L. Cohen                                          •
                                                                      –
    Biological Psychiatry. 1994 Jul                                   –
    1;36(1):5-20.                                         •
                                                                      –           literacy
                                                                      –
                                           2008/1/9                   –                      etc
                                                      1                                            2




                                                          • Beversdorf(2006)
• Bauman & Kemper(1985,1986,1991,1993)                            –
    –                            9    29                                  false memory
    –                                                     • McClleland(2000)
        •                                                         –
        •
        •                                                 • O’Loughlin and Thagard(2000)
        •
                                                                  –

                                                          • Gustafsson(1997)
    –                           MRI                               –
        Courchesne et al.1987
                                                      3                                            4




•             ABI
                                           input
                                                              •
                                                              •
                            A Neural Network
  Approach to the Classification of Autism, 1993,
  J.Autism                                                    •
•                                    hidden layer
                output

•

                                                      5                                            6




                                                                                                       1
•                                                    ABI
     Autistic Behavior Index

    –             28        0 3                                   • Hidden layer
     0 = never, 1 = rarely/emerging
     2 = sometimes /partially, 3 = often/typically                •             114case   input 11 output 2
                                                                                               hidden layer
1 Reactions to pain                7 Verbal Perseveration                 3 Neural Ware,1991
2 Eye Contact                      8 Topic Perseveration          •          Hidden layer      1,2,3,4,6,9,13
3 Gesture                          9 Repetitive Bahavior
4 Imagination                      10 Empathy/Facial Expression   • Trainning 32,00
5 Tactile defensiveness            11 Intonation/Understanding
6 Social Interaction                                          7                                                     8




                                                                               MR     Autism       Output Layer
    • Trainig set 114                                                                                 2 units
      – 57                     2 11             5.41
      – 57                       2 11              5.70
                                                                                                     Hidden Layer
    • Test set 44
                                                                                                   1 or 2 or 3 or 4 or
      – 25                                                                                         6 or 9 or 13 units
      – 19
                                                                                                      Input Layer
                                                                                                        11 units
                                                              9                                                    10




                                                                                                    • Hidden layer
                                                                                                      unit
                                                                                                      training test


    •
                                                                                                    • Training set
    • Training set                                                                                        unit


      – 1 10,000               0.30
                                                                                                    • Test set
      – 10,001 30,000                 0.15                                                             MR
      – 30,001 32,000                 0.0375                                                                unit     9



                                                             11                                                    12
                                                                  MR Autism




                                                                                                                         2
                                           • Hidden layer                                 • Hidden layer
                                             1unit        9unit                             1unit
                                                                                            9unit
                                             Training set                                   Test set



                                                                                          • Unit 1
                                           • Unit 1
                                                      81    95%
                                           • Unit 9
                                                                                          • Unit 9
                                                                                             MR

                                                                                                     figure6


                                                            13                                           14




                                                                         Limitation
                                                                  •

    •
        training set                  test set                    •

                                                                                          Bailey, 1998
        – Unit                                                    •
    •                       training set                              Baron-Cohen(2000)
                 test set
        – Unit

                                                            15                                           16




•




•




                                                            17




                                                                                                               3

								
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