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    Relationship between eye dominance and pattern electroretinograms in normal human subjects
    (TAYLOR & FRANCIS LTD, 2005) Kamis, U; Gündüz, K; Okudan, Nilsel; Gökbel, Hakkı; Bodur, S; Tan, L
    The authors conducted a study in 100 non-smoker healthy normal human subjects to find a relationship between eye dominance and macular function as tested by using transient stimulus and electroretinography. Eye preference procedure was carried out using two reference points and pattern electroretinograms (PERGs) were recorded using black and white checks, each check subtending 23'. Trace averages was retriggered every 300 milliseconds (ms) with data collection time of 150 ms. The difference in PERG P-50 amplitudes between right and left eyes was analyzed, using Student's t test. There was no significant difference in PERG P-50 amplitudes between the right and left eve dominant subjects as well as no significant differences between the right and left eyes in right eve dominants and left eye dominant, but in the left-eye doininant group the left eye PERG Pro amplitudes were significantly higher in females than males. Although pattern-reversal visual evoked potentials of healthy subjects provide electrophysiological evidence of lateralization in the nervous system, sensory eye dominance seems to have no correlation with macular function.
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    Twelve-month prevalence of obsessive-compulsive disorder in Konya, Turkey
    (W B SAUNDERS CO, 2004) Cilli, AS; Telcioglu, M; Askin, R; Kaya, N; Bodur, S; Kucur, R
    We conducted a household survey of 3,012 adults aged 18 and over in order to estimate the prevalence of DSM-IV obsessive-compulsive disorder (OCD) in urban areas in Konya, Turkey. Trained psychiatry interns administered the 2.1 version of the OCD section of the Composite International Diagnostic Interview (CIDI). The 12-month period prevalence rate of OCD was 3.0%. The mean age of onset of OCD was 25.9 12.5 (range, 7 to 63) years. The prevalence rate of OCD was slightly higher among females (males 2.5%, females 3.3%), but the difference was not statistically significant. The relative risk for divorced, separated, or widowed subjects was approximately 4.2 times higher for OCD than others (2.7% v 10.5%). The 1-year prevalence of OCD inversely related to age group in male subjects, but increased with age in female subjects. The prevalence rate of OCD was not different by the level of education, except it was statistically higher among subjects who were literate but had no schooling, of which the causal relationship was high prevalence rate of OCD among female literate-but no schooling subjects. Subjects with few (one or two) and more siblings (seven or more) had a significantly higher prevalence rate of OCD than subjects with moderate numbers of siblings (three to six). No significant difference was found according to employment, fertility, birth order, and income of the subjects. About 30% of subjects with OCD had only obsessions, whereas 68.5% had both obsessions and compulsions. Only one subject (1.1%) with OCD met compulsion criteria without obsessions. The prevalence rate of OCD we found in Konya, Turkey was similar to the prevalence rates of most epidemiological studies. (C) 2004 Elsevier Inc. All rights reserved.