These nosologies removed the distinction between organically based disorders and psychologically based disorders present in preceding editions.

"DSM-lV and DSM-lV-TR" nosologies removed the distinction between organically based disorders and psychologically based disorders present in preceding editions.

Explanation:

DSM IV denotes the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision. It is handbook which is being used by the physicians in the Unites States and also over the worldwide as the authoritative guide in case of the diagnosis of the mental disorder. It also has the descriptions about the signs and symptoms of diseases with standards of mental disorders. This manual is published by American psychiatric Association(APA), in this book it has all the possible ways of mental disorder treatment.

using the scientific method.

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