• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site
For visually-impairedUser profile (HSE staff only)Search

Recurrent Neural Pathways in Motion and Shape Visual Perception: a TMS Study

Student: Nataliia Zhozhikashvili

Supervisor: W.Joseph MacInnes

Faculty: Institute for Cognitive Neuroscience

Educational Programme: Cognitive Sciences and Technologies: From Neuron to Cognition (Master)

Year of Graduation: 2020

This work presents a research project focused on the role of feedback neuronal connections in the cerebral cortex in the process of visual perception. It is known that various areas of the cortex are connected not only with feedforward, but also with feedback neuronal paths (Felleman & Van Essen, 1991). However, there is very little literature on the role of these feedback connections. The purpose of this study is to prove the need for a recurrent processing of visual information for successful performance of visual tasks. In this study, we tried to dissociate two recurrent neuronal pathways of visual information flow in the cerebral cortex: a recurrent loop between the primary visual (V1) and middle temporal (MT) areas for the motion detection process and a recurrent loop between the V1 and the lateral occipital (LO) areas for the shape detection process. For this purpose, we used transcranial magnetic stimulation (TMS) and the double dissociation method.

Student Theses at HSE must be completed in accordance with the University Rules and regulations specified by each educational programme.

Summaries of all theses must be published and made freely available on the HSE website.

The full text of a thesis can be published in open access on the HSE website only if the authoring student (copyright holder) agrees, or, if the thesis was written by a team of students, if all the co-authors (copyright holders) agree. After a thesis is published on the HSE website, it obtains the status of an online publication.

Student theses are objects of copyright and their use is subject to limitations in accordance with the Russian Federation’s law on intellectual property.

In the event that a thesis is quoted or otherwise used, reference to the author’s name and the source of quotation is required.

Search all student theses