Buradasınız

Anasayfa » Content

KRONİK ELEKTROD İMPLANTE EDİLEN KEDİLERDE PASİF ODDBALL YANITLARINDAKİ OLAYA-İLİŞKİN GAMMA BANDI AKTİVİTESİ

Event-related gamma baıtd activity in passive oddball responses in chronic electrode imp- lanted cats.

Journal Name:

  • İstanbul Tıp Fakültesi Dergisi

Publication Year:

  • 1999

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Auditory oddbail paradigm was applied to 8 çatş with..implanted.chrgniç electT_o: des in the auditory and visual sensory cortices, medial and lateral geniculate nuclei and hippo-campus. The increase of the auditory event-related potentials (ERP) to deviant stimuli compa-red to the auditory ERPs to Standard stimuli during the period of first 200-250 ms, is an elect-rophysiological indicator for the presence of automatic cognitİve processes in the cat. The pa-rallel increase of the gamma response to deviant stimuli in the auditory cortex and hippocam-pus suggests that the gamma response has a role in the information transfer between neural structures during cognitive processes.
Bookmark/Search this post with
Abstract (Original Language): 
İşitme ve görme duyusal korteksine, talamusun medyal ve lateral genikülat çekirdeklerine ve hipokampusuna kronik elektrod yerleştirilmiş olan 8 kediye, işitsel oddball paradigması uygulanmıştır. Deviant uyaranlara karşı Ölçülen işitsel olaya-ilişkin potansiyel (OİP) genliklerinin standart uyaranlarla elde edilen OİP lerden ilk 200-250 ms lik dönemde büyük bulunması kedide otomatik bilişsel süreçlerin varlığının elektrofizyolojik bir göstergesidir. İşitme korteksi ve hipokampusta deviant uyaranla elde edilen gamma yanıtının, standart uyaranla elde edilenden daha büyük olması, gamma yanıtının bilişsel süreçler sırasında beyinde nöral yapılar arasında karşılıklı bilgi aktarımında rolü olduğunu düşündürmektedir.
FULL TEXT (PDF): 
PDF icon arastirmax-kronik-elektrod-implante-edilen-kedilerde-pasif-oddball-yanitlarindaki-olaya-iliskin-gamma-bandi-aktivitesi.pdf
  • 2
180-182
  • Turkish

REFERENCES

References: 

1. Csepe V., Karmos G., Molnar M.: Subcortical evoked potential correlates of early İnformation processing: mis-match negativity in cats. "Braİn Dynamics, Progress and Perspectives, editör: Başar E., Bullock T.H., Springer, Berlin (1989).
2. Eckhom R., Bauer R., .Tordan W., Brosch M., Kruse W., Munk M., Reitboeck H.J,: Coberent osciltations: a mec-hanism of feature linking İn the visual cortex? Biol Cybern 60:121 (1988).
3. Freeman WJ.: Mass Action in the Nervous System, Aca-demic Press, New York, (1975).
4. Gray C.M., KÖnİg P„ Engel A.K., Singer W.: Oscillatory
response in the cat visual cortex exhibit intercolumnar synchronization which reflecls global stimulus properti-es. Nature 338:334 (1989).
5. Marshall L., Mölle M., Bartsch P.: Event-related gamma band activity during passive and active oddball tasks. NeuroReport7:1517 (1996).
6. Rİbary U., Llinas R.: The spattal and temporai organiza-tion of the 40 Hz response in human as analyzed by magnetic recording (MEG). Eur J Neurosci 51:1229 (1990).
7. Ruusuvirta T., Korhonen T., Penttonen M., Arikoski J., Kivirikko K.: Hippocampal event-related potentials to pitch deviances in an auditory oddball situation in the cat: experiment I. Intern J Psychophysiol 20:33 (1995).
8. Sheer D.E.: Sensory and cognitive 40 Hz event-related potentials: behaviouraİ correlates, brain function, and cü-nical application, "Brain Dynamics, editör: Başar E., Bullock T,H., Springer, Berlin 339 (198(.>).
9. Sııider R.S., Niemer W.T.: A Stereotaxic Atlas of the Cat Brain, University Chicago Press, Chicago (1964).
10. Tiitinen H., Sinkkonen J., Reinikainen K., Alho K., Lavi-kainen J., Naatanen R.: Selective attention enhances the auditory 40-Hz transient response in humans. Nature 364:59 (1993).

Thank you for copying data from http://www.arastirmax.com