1015
From the supposition that there exists a possible connection between certain psychopathological symptoms , and / or syndromes ( e . g . , hallucinations ) and regional cerebral dysfunction , patients suffering from auditory and tactile hallucinations were investigated , in a symptom - oriented study , using the method of technetium - 99m - Hexamethyl - propylenamine Oxime ( 99m - Tc - HMPAO ) - Single Photon Emission Computed Tomography ( SPECT ) and compared with normal controls .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None