The document discusses a "defect of reason" caused by a disease of the mind which affects a person's ability to reason. It notes that confusion alone is not enough and there needs to be a total inability to reason or know that one's act is wrong. It also states that the internal cause does not have to be a disease of the brain, but anything that affects one's ability to reason or know what they are doing is wrong.

1. Mcnaughton
De Niro

2. A Defect of Reason

3. Caused by a disease of the mind
L

4. Which effects a
persons ability to
reason

5. Clarke

6. Confusion not enough total inability to
reason or know act is not wrong
or

7. Kemp

8. Internal cause does not have to be a disease of the brain just
anything that effects D ability to reason or know what he does
is wrong
Pacino
NO
L