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University of California PiiUications in Anatomy [^^oi- 2 



A narrow strip of cortex hidden in the sulcus cinguli and representing 

 a portion of Brodmann's areas 23 and 24, also belongs to the somatic 

 sensory region. 



Fig. 7. Brodmann's chart of the cytoarchitectural areas and regions of the 

 cerebral cortex in Gercopithecus (Brodmann, 1904-05, 1907, 1909). The area 

 striata of Elliot Smith, Brodmann's field 17, along the horizontal branch of the 

 calcarine fissure (lower figure), and field 3 along the central sulcus (upper 

 figure) are in reality buried in the sulci mentioned. 



The question arises as to how far the boundaries of this "mini- 

 mal somatic sensory- reg^ion ' ' as determined by combining the results 

 of all four experiments might coincide with the actual somatic sensory 

 region of the hemisphere. To answer this attention must be called 



