El Tercihinin Görsel P300 Yanıtları ve Görsel Tarama Yolları Üzerine Etkisi

Yıl 2012, Cilt: 1 Sayı: 1, 32 - 40, 01.04.2012

Gökçer Eskikur İlker Yücesir Ümmühan İşoğlu-alkaç

Öz

Beyin yarıküre asimetrilerinin davranışa da benzer şekilde yansıdığı düşünülmektedir. Bu konuda en belirgin davranışsal asimetri, el tercihidir. Görsel Oddball paradigması ile 19 farklı bölgeden, sol ve sağ elini kullanan 14’er gönüllünün toplam 28 kişi Olaya İlişkin Potansiyel OİP verileri kaydedilmiştir. Ayrıca değişikliği tespit paradigmasında tarama yolu değerlendirilmiştir. Sağ ve sol elini kullananların P300 yanıtlarının genlik ve latans değerlerinin karşılaştırmasında gruplar arası fark bulunmazken; kanal bazında orta hat Fz, Cz, Pz genlik p

Anahtar Kelimeler

El tercihi, Olay ilişkili potansiyelleri, P300, EEG

The Effect of Handedness on Visual P300 Responses and Visual Scanning Pathways

Öz

It is thought that hemispheric asymmetry is reflected to behavioral asymmetries. The most prominent behavioral asymmetry is hand preference. This study consisted of two groups 14 each with different handedness. Event-Related Potentials ERPs to a visual oddball task were recorded from 19 sites, and another session with a “change detection paradigm” was applied, where the visual scanning pathways were recorded. The comparison of P300 grand averages of 19 sites showed no significant difference between the groups. The comparison of the central sites Fz, Cz, Pz showed significant differences of both, amplitude and latency, p

Anahtar Kelimeler

Hand preference, Event-related potentials, P300, EEG

Kaynakça

• Nalçacı E. Beyin İşlevlerinin Yanallaşması. In: Karakaş S, Ed. Kognitif Nörobilimler. MN Medikal & Nobel Tıp Kitap Sarayı. Ankara. 2008: 149-168.
• Geshwind N. Historical Introduction. In: Geshwind N, Galaburda AM, Ed(s). Cerebral Dominance. Harvard University Press. Cambridge. 1985.
• Kolb B, Whishaw IQ. Fundamentals of Human Neuropsychology. 4th Ed. WH Freeman and Company. New York. 1996.
• Bear MF, Connors BW, Paradiso MA. Language and Attention. In: Neuroscience, Exploring the Brain. William&Wilkins. Baltimor: 2001: 576-614.
• Springer SP, Deutsch G. Left Brain, Right Brain. 4th Ed. WH Freeman and Company. New York. 1993.
• Hoptman MJ, Davidson RJ. How and why do the two cerebral hemispheres interact? Psychol Bul 1994; 116(2): 195-216.
• Davidson RJ. Affect, Cognition, and Hemispheric Specialization. In: Izard CE, Kagan J, Zajonc R. Ed(s). Cambridge University Press. Cambridge. 1984: 320-65. and Behavior.
• Berger H. Über das elektrenkephalogramm des Menschen. Nervenkrankheiten 1929; 87: 527-70. Psychiatrie und
• İşoğlu-Alkaç Ü. Beyin araştırmaları tarihinde bir gezinti: Elektronörofizyoloji. Klinik Gelişim 2009; 22(3): 14-9.
• Clark V, Hillyard SA. Spatial selective attention affects early extrastriate but not striate components of the visual evoked potential. J Cog Neuroscience 1996; 8: 387-402.
• Polich J. P300 clinical utility and control of variability. J Clin Neurophysiol 1998; 15: 14-33.
• Reinvang I, Magnussen S, Greenlee MW. Hemispheric asymmetry in visual discrimination and memory: ERP evidence for the spatial frequency hypothesis. Experimental Brain Research 2002; 144: 483-95.
• Annett M. The binominal distribution of right, mixed and left handedness. Quart J Experim Psychol 1967; 19: 327-33.
• Annett M. Handedness and cerebral dominance: The Right Shift Theory. J Neuropsychiatry Clin Neurosciences 1998; 10: 459-69.
• Annett M. Parallels between asymmetries of planum temporale and of hand skill. Neuropsychologia 1992; 30: 951-62.
• Rasmussen T, Milner B. The role of early left-brain injury in determining lateralization of cerebral speech functions. Annuals New York Academy of Sciences 1977; 299: 355-69.
• Knecht S, Dräger B, Deppe M, et. al. Handedness and hemispheric language dominance in healthy humans. Brain 2000; 123: 2512-8.
• Alexander JE, Polich J. Handedness and P300 from auditory stimuli. Brain and Cognition 1997; 35: 259-70.
• Polich J, Hoffman LD. P300 and handedness: On the possible contribution of corpus callosal size to ERPs. Psychophysiology 1998; 35: 497-507.
• Witelson SF. The brain connection: the corpus callosum is larger in left-handers. Science 1985; 229: 665-8.
• Driesen NR, Raz N. The influence of sex, age, and handedness of corpus callosum morphology: a meta-analysis. Psychobiology 1995; 23: 240-7.
• Simons DJ, Levin DT. Change blindness. Trends in Cognitive Sciences 1997; 1: 261-7.
• Rensink RA, O’Regan JK, Clark JJ. To see or not to see: the need for attention to perceive changes in scenes. Psychological Science 1997; 8(5): 368-73.
• Çiçek M, Gitelman D, Hurley RS, Nobre A, Mesulam M. Anatomical physiology of spatial extinction. Cerebral Cortex 2007; 17: 2892-8.
• Suzuki M, Hoshiyama M. Difference in P300 response between hemi-field visual stimulation. Neural Sciences 2011; 23: 603-8.
• Nalçacı E, Kalaycıoğlu C, Güneş E, Çiçek M. El tercihi anketinin geçerlik ve güvenilirliği. Türk Psikiyatri Dergisi 2002; 13(2): 99-106.
• Alexander JE, Porjesz B, Bauer LO, et al. P300 Hemispheric amplitude asymmetries from a visual oddball task. Psychophysiology 1995; 32: 467-75. 28.Chui HC, Damasio AR. Human cerebral asymmetries evaluated by computed tomography. J Neurol Neurosurg Psychiatry 1980; 43: 873-8.
• Wuerger S, Xiao K, Mylonas D, Huang Q, Karatzas D, Hird E, Paramei G. Blue-green color categorization in Mandarin-English speakers. J Opt Soc Am A Opt Image Sci Vis 2012; 29(2): 102-7.
• Bosworth RG, Petrich JA, Dobkins KR. Effects of spatial attention on motion discrimination are greater in the left than right visual field. Vision Res 2012; 52(1): 11-9.
• Okada T, Sato W, Kubota Y, Toichi M, Murai T. Right hemispheric dominance and interhemispheric cooperation in gaze-triggered reflexive shift of attention. Psychiatry Clin Neuroscience 2012; 66(2): 97-104.