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. Author manuscript; available in PMC: 2013 Aug 12.
Published in final edited form as: Biol Psychiatry. 2010 Dec 8;69(5):415–423. doi: 10.1016/j.biopsych.2010.10.003

Table 2.

Behavioral Results

Reaction Times (Milliseconds)
Self-Reflection
Other-Reflection
Affect Labeling
Perceptual
Mean SD p Value Mean SD p Value Mean SD p Value Mean SD p Value
Controls 1472 239 0.39 1522 251 0.97 1411 217 0.09 916 151 0.05
Patients 1538 206 1525 204 1532 197 1066 261

Response Types (%)
Self-Reflection
Other-Reflection (% Like Other)
Affect Labeling (% Positive)
Perceptual (% Correct)
Mean SD p Value Mean SD p Value Mean SD p Value Mean SD p Value

Controls 49.0 6 0.91 48.9 5 0.66 49.3 5 0.59 98.0 4 0.13
Patients 49.3 8 47.8 8 48.1 7 94.0 10

Mean reaction times, mean percentage response types, and p values for the independent Student's t tests comparing the means of the two groups, for the four experimental tasks. The total percentage of trials in which subjects made responses (across all four tasks) was high in each group (Mean ± SD): 98% ± 3% in the controls and 97% ± 2% in the schizophrenia patients. Also, during the self-reflection task, both groups showed a comparably large bias to rate the positively valenced adjectives as “self” and the negatively valenced adjectives as “not self” (percentage of words rated as “self” that were positively valenced: controls: mean ± SD = 86.9 ± 9 %; patients: mean ± SD = 85.1 ± 9%; t = .57, df = 34, p = .57).