Effectiveness of Meta-Cognitive Training (EMC) in People With Psychosis of Brief Evolution.

The Positive and Negative Syndrome Scale (PANSS)(Kay et al., 1987; Peralta and Cuesta, 1994) measures 30 symptoms on a scale of 1-7, with higher scores indicating greater psychopathology. The PANSS contains three sub-scales: positive, negative and general symptoms.

The PSYRATS (Haddock et al, 1999; Gonzalez et al, 2003). This scale assess delusions in 6 items.

Three different computer tasks were used in the study. In Task 1, jars contained balls of two different colors; in one of them the proportion was 85 black versus 15 orange balls and in the other the ratio was reversed. Task 2 was the same as Task 1 but with a proportion of 60:40 in each jar. Finally, Task 3 was similar to Task 2 but instead of balls, the jars contained positive or negative comments with a proportion of 60:40. The patients had to decide which to jar belonged the extracted balls or comments. At all times the participants had information about the balls previously extracted, in order to control the effect of memory. The subjects could remove as many balls as needed to make their final decision (Garety et al., 2005). JTC was considered as taking a decision after extracting 1 or 2 balls.

The Beck Cognitive Insight Scale (BCSI; Beck et al., 2004; Gutierrez-Zotes et al., 2012) is a self-registering measure of 15 items which evaluates how the patients assess their own judgement. It has two dimensions; self-reflection (R) (9 items), and self-certainty (C) (6 items). A compound index of cognitive insight is obtained as the subtraction of self-certainty from self-reflection (R-C).

The scale assess the attributional style in 32 situations.

The Scale assess Theory of Mind. For the porpouse of the study we selected 3 different situations in each assessment

This scale assess irrational beliefs in ten subscales:Need for acceptance by others, High self-expectations, blame, Intolerance to frustration, Worry and anxiety, Emotional irresponsibility, Avoidance of problems, dependency, helplessness, perfectionism.

This scale assess social functioning in people with psychotic disorders (Birchwood et al, 1990; Torres y Olivares, 2000).

A neuropsychological battery was included. The test included were WCST(Wisconsin Card Sorting Test, Bergs et al, 1948)measure of executive function; Test Stroop (Stroop, 1935) flexibility and inhibition of automatic responses; TMTA-B (Trail Making Test, Reitan, 1993) visual attention and task switching; CPT (Continous Performance Test, Conners 2000) this scale asses inattentiveness and impulsivity; TAVEC (Test Aprendizaje Verbal España Complutense, Benedet and Aleixandre 1998) this scale asses memory; WAIS (Weschler Adults Intelligence Scale, Wechsler 1955)subscales of digits and vocabulary.