Mental Visual Synthesis is Originated in the Fronto-temporal Network of the Left Hemisphere
| Autor: | Yukihito Yomogida, Jobu Watanabe, Motoaki Sugiura, Yoshihiko Matsue, Yuko Sassa, Ryuta Kawashima, Yuko Akitsuki, Teruyuki Sato |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Adolescent genetic structures Brain activity and meditation Cognitive Neuroscience Semantics Functional Laterality Lateralization of brain function Cellular and Molecular Neuroscience Mental Processes medicine Humans Analysis of Variance medicine.diagnostic_test Line drawings Human brain Magnetic Resonance Imaging Object (philosophy) Temporal Lobe Frontal Lobe medicine.anatomical_structure Imagination Nerve Net Functional magnetic resonance imaging Psychology Photic Stimulation Cognitive psychology Mental image |
| Zdroj: | Cerebral Cortex. 14:1376-1383 |
| ISSN: | 1460-2199 |
| Popis: | Mental visual synthesis is the capacity for experiencing, constructing, or manipulating 'mental imagery'. To investigate brain networks involved in mental visual synthesis, brain activity was measured in right-handed healthy volunteers during mental imagery tasks, in which the subjects were instructed to imagine a novel object, that does not exist in the real world, by composing it from two visually presented words associated with a real object or two achromatic line drawings of a real object, using functional magnetic resonance imaging (fMRI). Both tasks activated the same areas in the inferior frontal and inferior temporal cortices of the left hemisphere. Our results indicate that the source of mental visual synthesis may be formed by activity of a brain network consisting of these areas, which are also involved in semantic operations and visual imagery. |
| Databáze: | OpenAIRE |
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