TY - CHAP AU - Füzesiné Hudák, Mariann AU - Jakab, Zoltán AU - Kovács, Ilona ED - Liliana, Albertazzi TI - Phenomenal qualities and the development of perceptual integration T2 - The Wiley-Blackwell Handbook of Experimental Phenomenology PB - Wiley-Blackwell CY - Oxford SN - 9781119954682 PY - 2013 SP - 145 EP - 161 PG - 17 DO - 10.1002/9781118329016.ch5 UR - https://m2.mtmt.hu/api/publication/1791495 ID - 1791495 AB - In this chapter, data concerning the development of the principal aspects of vision is reviewed. First, the development of colour vision and luminance perception is discussed. Relevant data accumulated so far indicates that perception of colour and luminance is present by 6-9 months of age. The presence of typical color illusions at this age suggests that the phenomenal character of color experience is comparable to that of adults well before the first birthday. Thus it seems plausible that color perception develops on the grounds of genetically preprogrammed maturation, in which perceptual learning and plasticity play a limited role. This claim also seems to be supported by case studies of newly sighted patients. On the other hand, perceptual integration of edges and forms in the visual environment as well as the development of binocular vision, and the perception of ambiguous figures seem to depend crucially on early perceptual learning. Both developmental and clinical data indicate a more significant involvement of perceptual learning in such mid-level and higher level perceptual phenomena. LA - English DB - MTMT ER - TY - JOUR AU - Gold, JM AU - Barch, DM AU - Carter, CS AU - Dakin, S AU - Luck, SJ AU - MacDonald, AW 3rd AU - Ragland, JD AU - Ranganath, C AU - Kovács, Ilona AU - Silverstein, SM AU - Strauss, M TI - Clinical, Functional and Inter-task Correlations of Measures Developed by the Cognitive Neuroscience Test Reliability and Clinical applications for Schizophrenia Consortium(CNTRaCS) JF - SCHIZOPHRENIA BULLETIN J2 - SCHIZOPHRENIA BULL VL - 38 PY - 2012 IS - 1 SP - 144 EP - 152 PG - 9 SN - 0586-7614 DO - 10.1093/schbul/sbr142 UR - https://m2.mtmt.hu/api/publication/1773075 ID - 1773075 LA - English DB - MTMT ER - TY - JOUR AU - Bódizs, Róbert AU - Gombos, Ferenc AU - Kovács, Ilona TI - Sleep EEG fingerprints reveal accelerated thalamocortical oscillatory dynamics in Williams syndrome JF - RESEARCH IN DEVELOPMENTAL DISABILITIES J2 - RES DEV DISABIL VL - 33 PY - 2012 IS - 1 SP - 153 EP - 164 PG - 12 SN - 0891-4222 DO - 10.1016/j.ridd.2011.09.004 UR - https://m2.mtmt.hu/api/publication/1721418 ID - 1721418 AB - Sleep EEG alterations are emerging features of several developmental disabilities, but detailed quantitative EEG data on the sleep phenotype of patients with Williams syndrome (WS, 7q11.23 microdeletion) is still lacking. Based on laboratory (Study I) and home sleep records (Study II) here we report WS-related features of the patterns of antero-posterior 8–16 Hz non-rapid-eye-movement (NREM) sleep EEG power distributions. Participants in Study I were 9WS and 9 typically developing (TD) controls matched for age (14–29 years) and sex, and sleeping for two consecutive nights in the laboratory. WS participants were characterized by region-independent decreases in 10.50–12.50 Hz and central increases in 14.75–15.75 Hz EEG power. Region-independent decreases and increases in z-scores of the spectra were observed in the 10.25–12.25 Hz and 14–16 Hz ranges, respectively. Moreover, in the EEG spectra of participants with WS a lower probability for the emergence of a frontally dominant peak was observed. Parietal fast sigma peaks and the antero-posterior shifts in power distributions were of higher frequencies in WS (1Hz difference). A 1 year follow-up of 9 WS and 3 TD participants, as well as their inclusion into larger samples (20 WS and 20 TD, age: 6–29 years) of a two-night ambulatory home polysomnography study confirmed the WS-specific decrease in alpha/low sigma power (8–11.75 Hz) and the pattern of z-score differences (decreases: 8.50–11.25 Hz; increases: 13.5–14 Hz), including the antero-posterior shifts in power distribution (0.5 Hz) and some features of the spectral peaks. Altogether these data suggest a decrease in alpha/low sigma power, as well as a redistribution of NREM sleep 8–16 Hz EEG power toward the higher frequencies and/or a higher frequency of NREM sleep thalamocortical oscillations in WS. LA - English DB - MTMT ER - TY - JOUR AU - Fekete, István AU - Pléh, Csaba TI - „Ne viccelődj a rendőrökkel”. Egy- és kétirányú társas viszonyok a nyelvben TS - Egy- és kétirányú társas viszonyok a nyelvben JF - MAGYAR PSZICHOLÓGIAI SZEMLE J2 - M PSZICH SZLE VL - 66 PY - 2011 IS - 4 SP - 559 EP - 586 PG - 28 SN - 0025-0279 DO - 10.1556/MPSzle.66.2011.4.1 UR - https://m2.mtmt.hu/api/publication/2658926 ID - 2658926 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Vámos, Tibor AU - Berencsi, Andrea AU - Fazekas, Gábor AU - Imanaka, K AU - Horváth, Mónika AU - Trócsányi, M TI - Precise isometric hand grip learning of patients with hemiparetic stroke JF - EUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE J2 - EUR J PHYS REHAB MED VL - 47 PY - 2011 IS - Suppl. 1 SP - 17 EP - 17 PG - 1 SN - 1973-9087 UR - https://m2.mtmt.hu/api/publication/1820357 ID - 1820357 LA - English DB - MTMT ER - TY - CONF AU - Kovács, Ilona AU - Mikó-Baráth, Eszter AU - Markó, Katalin AU - Ohmachtné Hollódy, Katalin AU - B, Török AU - Jandó, Gábor TI - Ready to experience: Binocular function is turned on earlier in preterm infants T2 - Society for Neuroscience Annual Meeting PY - 2011 SP - 1 UR - https://m2.mtmt.hu/api/publication/1773116 ID - 1773116 LA - English DB - MTMT ER - TY - JOUR AU - Füzesiné Hudák, Mariann AU - Geier, J TI - The segmenting effect of diagonal lines in the ramped Chevreul illusion JF - PERCEPTION J2 - PERCEPTION VL - 40 PY - 2011 SP - 202 EP - 202 PG - 1 SN - 0301-0066 UR - https://m2.mtmt.hu/api/publication/1773106 ID - 1773106 LA - English DB - MTMT ER - TY - JOUR AU - Geier, J AU - Füzesiné Hudák, Mariann TI - Changing the Chevreul Illusion by a Background Luminance Ramp: Lateral Inhibition Fails at Its Traditional Stronghold - A Psychophysical Refutation JF - PLOS ONE J2 - PLOS ONE VL - 6 PY - 2011 IS - 10 SN - 1932-6203 DO - 10.1371/journal.pone.0026062 UR - https://m2.mtmt.hu/api/publication/1773097 ID - 1773097 LA - English DB - MTMT ER - TY - CONF AU - Silverstein, SM AU - Keane, BP AU - Barch, D AU - Carter, C AU - Gold, J AU - Kovács, Ilona AU - Mac, Donald III A AU - Regland, D AU - Strauss, M TI - Spatial Range of Contour Integration in Schizophrenia T2 - Vision Sciences Society Annual Meeting C1 - Naples (FL) PY - 2011 SP - 1 UR - https://m2.mtmt.hu/api/publication/1773073 ID - 1773073 AB - Perceptual organization impairments in schizophrenia have most commonly been demonstrated in contour integration (CI) tasks. Here, we tested the hypothesis that CI impairments become more pronounced as the distance between integrated elements increases. In the first experiment, patients (n= 30) and controls (n=20) were presented an array of Gabor elements, a subset of which could be integrated into an oblong shape. The task was to determine whether the shape pointed up, down, right or left. There were two spacing conditions, corresponding to whether the Gabor elements comprising the contours were spatially separated by 4.5 or 9 wavelengths. For each condition, we employed the method of constant stimuli and modulated delta—the ratio of background element spacing to target element spacing (where higher delta creates an easier task). Accuracy was computed for each delta level and a three-parameter Weibull function was fit to the data for each spacing condition. As expected, both groups performed better (lower delta thresholds) when the target elements were separated only by 4.5 wavelengths. The effect of group was not significant, but there was a trend for the magnitude of patients’ performance decrement relative to controls to increase in the 9 wavelength condition. In the second experiment, the shapes pointed only left or right (to reduce key-press errors). In addition, the range of delta values was restricted to the steepest part of the curve (to improve threshold estimates) and the number of trials per delta level was increased (to improve fit). With a new sample (36 patients, 25 controls), we observed main effects of target-spacing and subject group, but no significant interactions. These data suggest that the previously demonstrated CI impairment in schizophrenia is due to factors other than an impairment in integrating features at larger distances, although spatial range may affect CI under some conditions. LA - English DB - MTMT ER - TY - JOUR AU - Gerván, Patrícia AU - Berencsi, Andrea AU - Kovács, Ilona TI - Vision First? The Development of Primary Visual Cortical Networks Is More Rapid Than the Development of Primary Motor Networks in Humans JF - PLOS ONE J2 - PLOS ONE VL - 6 PY - 2011 IS - 9 PG - 9 SN - 1932-6203 DO - 10.1371/journal.pone.0025572 UR - https://m2.mtmt.hu/api/publication/1773057 ID - 1773057 N1 - Megjegyzés-23954620 doi: 10.1371/journal.pone.0025572 Megjegyzés-24131532 doi: 10.1371/journal.pone.0025572 AB - The development of cortical functions and the capacity of the mature brain to learn are largely determined by the establishment and maintenance of neocortical networks. Here we address the human development of long-range connectivity in primary visual and motor cortices, using well- established behavioral measures - a Contour Integration test and a Finger-tapping task - that have been shown to be related to these specific primary areas, and the long-range neural connectivity within those. Possible confounding factors, such as different task requirements (complexity, cognitive load) are eliminated by using these tasks in a learning paradigm. We find that there is a temporal lag between the developmental timing of primary sensory vs. motor areas with an advantage of visual development; we also confirm that human development is very slow in both cases, and that there is a retained capacity for practice induced plastic changes in adults. This pattern of results seems to point to human-specific development of the ‘‘canonical circuits’’ of primary sensory and motor cortices, probably reflecting the ecological requirements of human life. LA - English DB - MTMT ER -