Does the lack of pseudoneglect in schizophrenia patients evince right hemisphere dysfunction? Z. Apostolov a , H. Kozhuharov a , Z. Stoyanov b a Department of Psychiatry and Medical Psychology, Varna University of Medicine, Bulgaria b Department of Physiology and Pathophysiology, Varna University of Medicine, Bulgaria The problem of whether schizophrenia is related to left hemisphere dysfunction, right hemisphere dysfunction or impaired interhemi- spheric transfer still remains unsolved. In the instance of right hemisphere dysfunction, there should be anomalies concerned with spatial processing and allocation of visuospatial attention, which are considered to be right hemisphere competencies. One of the manifes- tations of the predominant right hemisphere control of spatial attention is the pseudoneglect phenomenon. The line bisection task is one of the most common tests employed to assess pseudoneglect. The aim of the present study was to compare the results of the line bisection task performed by schizophrenia patients and by healthy controls. Fourteen male schizophrenic inpatients (mean age = 35.2 years) and nineteen healthy male controls (mean age = 32.3) were studied. A conventional paper-and-pencil line bisection task was used. There were two scores compared between the groups: (a) average values of absolute deviation from the veridical center (perceived line left half -true left half, in mm); (b) average values of relative deviation [percent deviation from midpoint = (perceived line left half -true left half) / (true left half) × 100]. The negative values of both scores indicate leftward bias. Healthy subjects, in accordance with our expectations, demon- strated mild pseudoneglect: deviation of perceived center to the left of the veridical center (an average deviation of -1.5 mm). In contrast to the controls, the schizophrenic patients exhibited rightward bisection error: an average deviation of 1.2 mm to the right of the veridical center. The average values of absolute deviation differed significantly between the two groups (t = 4.206; p b 0.001; df = 31). The difference between average values of relative deviation (respec- tively -2.5% for controls and 2.3% for schizophrenia patients) was also significant (t = 4.278; p b 0.001; df = 31). The results obtained show that, unlike healthy individuals, schizophrenia patients lack leftward bias in the line bisection task, i.e. they lack pseudoneglect. This could be interpreted as a deficit of right hemisphere function in schizophrenia. doi:10.1016/j.ijpsycho.2012.07.144 Refining the neurofeedback training protocol with EMG and individual alpha activity indices control in children with ADHD E. Sapina Russian Medical Science Academy Siberian Branch, Molecular biology and Biophysics Research Institute, Russia Federation Attention deficit/hyperactivity disorder (ADHD) is defined as a behavior disorder in which the essential features are signs of develop- mentally inappropriate inattention, impulsivity, and hyperactivity. Theta–beta ratio is traditionally used in neurofeedback training (NFT) protocols to treat children with ADHD (Monastra et al., 2005) Nevertheless increasing cognitive performance efficiency in children with ADHD is also very important for treatment. EEG cognitive efficiency predictors are individual alpha activity indices, individual alpha peak frequency (IAPF), alpha band width and alpha amplitude desynchronization in response to eyes open (Bazanova, 2009). Besides ADHD subjects show high psycho‐emotional tension which is associated with increased frontal muscle EMG amplitude (Bakhshayesh et al., 2011). The aim of this study was to refine the NFT protocol for ADHD treatment. To achieve the aim first alpha rhythm peculiarities should be studied in ADHD in comparison with healthy children, second the effect of muscle tension control simultaneously with theta–beta ratio decreasing NFT should be studied. Thirty‐two children 6–9 years old diagnosed with ADHD and 13 similar aged healthy children were investigated. Children with ADHD were randomly assigned to either the individual NFT group (INFT; n = 21) or the standard NFT group (SNFT; n = 11). Treatment for both groups consisted of 10 fifteen minute sessions. Pre- and post-treatment assessment consisted of psychophysiological measures, behavioral rating scales completed by parents and teachers, as well as psychomet- ric measures. Psychometric tests included attention test, cognitive task tests (verbal test, Kraepelin test modified for children) and Temml R. anxiety test. EEG and EMG were recorded at rest and during cognitive task. The SNFT group had 10 sessions with the use of standard frequency domain power of the ranges: theta (4–8 Hz), alpha (8– 12 Hz), and beta-1 (13–18 Hz). The INFT group had individual EEG ranges determined according the IAPF. Each theta–beta decreasing NFT session was accompanied with simultaneously forehead muscle relaxation. After 6 months both ADHD and healthy children were tested again. Inter individual comparison showed significantly higher muscle tension level both in the relaxed state and during the cognitive task in ADHD than in healthy children. Individual alpha peak frequency, alpha band width and desynchronization reaction were lower in ADHD than in healthy children. EMG and theta–beta ratio decreased significantly in the INFT group. IAPF, alpha band width, and amount of alpha suppression increased after effective NFT. A six‐month delayed test showed neurofeedback effect saving. These study results showed significant muscle tension control and individual alpha frequency EEG pattern contribution in neurofeed- back training effectiveness for ADHD treatment. doi:10.1016/j.ijpsycho.2012.07.145 Biofeedback games usage possibilities as ADHD a diagnostic method E. Sapina, E. Danilenko Russian Medical Science Academy Siberian Branch, Molecular Biology and Biophysics Research Institute, Russian Federation There is a strong demand for an objective method which can be used in schools to distinguish healthy children from those who have attention deficit/hyperactivity disorder (ADHD), learning disabilities (LD) and other problems. Identifying the distinction between children with ADHD and children with LD is also one of the most difficult tasks (Harmony T., 2009). We wanted to study if it is possible to use biofeedback games (BFB games) both to distinguish children with ADHD and LD from healthy children and to diagnose ADHD. Heart rate and reaction time were used as simultaneously controlled parameters for biofeedback. Heart rate showed self-control peculiarities while reaction time showed attention peculiarities. This type of biofeedback training could be performed in groups of ten participants or more at the same time. To gather data information, the blind method was used. 243 subjects (males and females aged 7– 9 years old) were tested before session. Psychometric tests included attention test and cognitive task tests (verbal test, Kraepelin test modified for children). EEG was registered in relaxed condition and during cognitive task to define theta–beta ratio as attention deficit predictor, and alpha rhythm indices such as power, individual alpha band width and desynchronization reaction as self-control predictors. Poster Abstracts / International Journal of Psychophysiology 85 (2012) 361–430 419