The aim of this study was to test the role of the visual primary (V1) and the middle temporal area (V5/MT) in the illusory motion perception evoked by the Enigma figure. The Enigma figure induces a visual illusion that is characterized by apparent rotatory motion in the presence of a static figure. By means of repetitive transcranial magnetic stimulation (rTMS) we show that V5/MT is causally linked to the illusory perception of motion. When rTMS was applied bilaterally over V5/MT just prior to presentation of the Enigma figure, the perception of illusory motion was disrupted for approximately 400 ms resulting in a delayed illusion onset. In contrast, rTMS applied over V1 did not have any effect on the illusory perception of motion. These results show that V5/MT, a visual cortical area associated with real motion perception, is also important for the perception of illusory motion, while V1 appears not to be functionally involved in illusory motion perception.
The neural basis of the Enigma illusion: a transcranial magnetic stimulation study / M., Ruzzoli; S., Gori; A., Pavan; C., Pirulli; C. A., Marzi; Miniussi, Carlo. - In: NEUROPSYCHOLOGIA. - ISSN 0028-3932. - 2011, 49:13(2011), pp. 3648-3655.
Titolo: | The neural basis of the Enigma illusion: a transcranial magnetic stimulation study. |
Autori: | M., Ruzzoli; S., Gori; A., Pavan; C., Pirulli; C. A., Marzi; Miniussi, Carlo |
Autori Unitn: | |
Titolo del periodico: | NEUROPSYCHOLOGIA |
Anno di pubblicazione: | 2011 |
Numero e parte del fascicolo: | 13 |
Codice identificativo Scopus: | 2-s2.0-80755133735 |
Codice identificativo ISI: | WOS:000297455900016 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.neuropsychologia.2011.09.020 |
Handle: | http://hdl.handle.net/11572/145662 |
Citazione: | The neural basis of the Enigma illusion: a transcranial magnetic stimulation study / M., Ruzzoli; S., Gori; A., Pavan; C., Pirulli; C. A., Marzi; Miniussi, Carlo. - In: NEUROPSYCHOLOGIA. - ISSN 0028-3932. - 2011, 49:13(2011), pp. 3648-3655. |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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