>> I was wondering if anyone would please answer the following question: Do
> humans have a principal sulcus? If not, what area of the frontal lobe
> (particularly prefrontal cortex) corresponds to the principal sulcus and
> area 46 of monkeys? I am researching the behavioral deficits of EVR and
> Phineas Gage, and I am trying to explain "normal" prefrontal patients and
> their memory deficits in juxtaposition to the behavioral deficits that
> these two patients show.....
>> Thanks so much for your help!
> Cognitive Neuro student on vacation and away from school!
I do not believe that the human brain has a specifically designated principal
sulcus, however there is an area 46. The real issue is whether the areas are
homologous. This issue is unresolved. My colleague Dr. Pandya is presently
working on the issue of macaque/human prefrontal cortical homologies and I will
be pleased to ask him in january to render an opinion. In the meantime try "The
frontal Lobes" by Stuss and Benson. May be of some help in your quest. For
further discussion E-Mail me. Good luck
