Brain damaged responses - what would you expect to see?

Question

If there are 2 individuals, one who has left hemisphere damage while the other has vice versa, what would you expect to see/find when they are asked to sketch out a letter (e.g. H) out of smaller symbols (e.g. D's)?

Would the left-hemisphere damaged patient simply draw a letter, while the right hemisphere damaged patient drew out what he/she was asked?

Note: The left side of the brain consists of the Brocas and Wernicks area.

Answer 1

Right hemisphere damage. They cannot percieve the whole shape formed from disparate elements but can draw local componants, so will draw many Ds in disorder, not in a H. Patients with left hemisphere damage can not percieve the separate elements that make up the whole, and draw a H.

The linguistic capabilities (Broca and Wernick's areas) are actually irrelevant to this task. Exactly the same occurs with non-linguistic stimuli (i.e. a triangle made up of rows of squares). It's just copying shapes, they don't have to know what they mean. That bit is a red herring. It's about holistic and reductionist processing; the right hemisphere is more holostic, and the left more reductionist.