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Neural Pathways from Recognition to Perception

Project description

Mapping the brain regions' implication in object recognition

Object recognition is a remarkable ability of our brain, helping us interact with the world. However, the mechanism by which our brain creates neural representations of the objects we see remains elusive. To address this lack of knowledge, the EU-funded Neuroception project will study neural information processing in the brain during object recognition. Scientists will identify the neuronal populations responsible for the representation of visual stimuli as well as the brain areas implicated in object recognition. The project's results will provide important knowledge on natural vision and advance the technology behind assistive devices for blind people.

Objective

Object recognition is essential to our interaction with the external world. Our brain is able to effortlessly identify objects even under the highly dynamic conditions of natural vision. This is a remarkable achievement of our visual system. Nevertheless, how the brain creates invariant object representations in the perceptual/visual domain remains elusive. In this project, I will combine novel large-scale electrophysiological recordings and advanced behavioral methods to investigate the neural information processing in higher cortical areas during object recognition. Firstly, I will investigate how cortical representations of visual stimuli progressively evolve across the cortical hierarchy to incorporate semantic information. For this, I will use simultaneous large-scale recordings with Neuropixels probes in mice engaged in a visual discrimination task. Secondly, I will characterize the selectivity of the neuronal populations in each cortical area. Here, I will take a deep-learning approach to model the neural responses of single cells to optimal stimuli. Finally, sophisticated statistical modelling and analysis techniques will be used to resolve how dynamic inter-areal interactions shape the neural representations of visual stimuli. Collectively, these objectives are an unprecedented attempt to disentangle the roles of different higher cortical areas in object recognition. This is fundamental towards enhancing our understanding of how the brain solves perceptual inference. Moreover the multidisciplinary nature of this project will provide a holistic understanding of natural vision during ethologically relevant behaviors. My findings will also motivate new artificial vision algorithms with improved object recognition capabilities under highly dynamic visual conditions. Particularly, the use in assistive devices for blind people will have major social impacts by improving their mobility, quality of life and reducing their dependency on the society.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

(opens in new window) H2020-MSCA-IF-2020

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Coordinator

IDRYMA TECHNOLOGIAS KAI EREVNAS
Net EU contribution
€ 259 808,64
Address
N PLASTIRA STR 100
700 13 IRAKLEIO
Greece
Region
Νησιά Αιγαίου Κρήτη Ηράκλειο
Activity type
Research Organisations
Links
Total cost
€ 259 808,64

Partners (1)