- Tytuł:
- NEUROPSYCHOLOGY AND THE NEUROPHYSIOLOGY OF PERCEPTUAL MICROGENESIS
- Autorzy:
-
Pąchalska, Maria
Góral-Pólrola, Jolanta
Mueller, Andreas
Kropotov, Juri D - Powiązania:
- https://bibliotekanauki.pl/articles/2137785.pdf
- Data publikacji:
- 2017-12-18
- Wydawca:
- Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
- Tematy:
-
microgenetic theory
event related potentials
stages of information flow
ventral visual stream
independent component analysis - Opis:
- Perception is one of the psychological operations that can be analyzed from the point of view of microgenetic theory. Our study tests the basic premise of microgenesis theory – the existence of recurrent stages of visual information processing. The event related potentials in two variants of a cued GO/NOGO task (contrasting images of Animals and Plants in the first variant, and contrasting images of Angry and Happy faces in the second variant) were studied during the first 300 ms following stimulus presentation. The independent component analysis was applied to a large collection of ERPs. The functional independent components associated with visual category discrimination, comparison to working memory, action initiation and conflict detection were separated. Information processing in the ventral visual stream (the temporal independent components) occurs at two sequential stages with positive/negative fluctuations of the cortical potential as indexes of the stages. The first stage represents the comparison of the pure physical features of the visual input with the memory trace. The second stage represents the comparison of more sophisticated semantic/emotional features with the working memory. The two stages are the results of interplay between bottom-up and top-down projections in the visual ventral stream.
- Źródło:
-
Acta Neuropsychologica; 2017, 15(4); 365-389
1730-7503
2084-4298 - Pojawia się w:
- Acta Neuropsychologica
- Dostawca treści:
- Biblioteka Nauki
Artykuł