Task: Text Categorization
Input (English): Question: The negative symptomatology of schizophrenia seems to be caused by: 
 Options:  <0> The excessive activity of some dopaminergic neural circuits. <1> The excessive activity of the GABAergic neurons. <2> The existence of brain damage. <3> Have a gene for schizophrenia that causes negative symptoms. <4> Insufficient activity of the serotonergic neurons of the frontal lobe.
Output (English): psychology