Article 2019

A biologically-inspired model to predict perceived visual speed as a function of the stimulated portion of the visual field

{Spatial orientation relies on a representation of the position and orientation of the body relative to the surrounding environment. When navigating in the environment, this representation must be constantly updated taking into account the direction, speed, and amplitude of body motion. Visual information plays an important role in this updating process, notably via optical flow. Here, we systematically investigated how the size and the simulated portion of the field of view (FoV) affect perceived visual speed of human observers. We propose a computational model to account for the patterns of human data. This model is composed of hierarchical cells\textquoteright layers that model the neural processing stages of the dorsal visual pathway. Specifically, we consider that the activity of the MT area is processed by populations of modeled MST cells that are sensitive to the differential components of the optical flow, thus producing selectivity for specific patterns of optical flow. Our results indicate that the proposed computational model is able to describe the experimental evidence and it could be used to predict expected biases of speed perception for conditions in which only some portions of the visual field are visible.}

Author(s): Solari, F and Caramenti, M and Chessa, M and Pretto, P and Bülthoff, HH and Bresciani, J-P
Journal: {Frontiers in Neural Circuits}
Volume: 13
Pages: 1--15
Year: 2019
Publisher: Frontiers Research Foundation
Bibtex Type: Article (article)
DOI: 10.3389/fncir.2019.00068
Address: Lausanne
Electronic Archiving: grant_archive

BibTex

@article{item_3169329,
  title = {{A biologically-inspired model to predict perceived visual speed as a function of the stimulated portion of the visual field}},
  journal = {{Frontiers in Neural Circuits}},
  abstract = {{Spatial orientation relies on a representation of the position and orientation of the body relative to the surrounding environment. When navigating in the environment, this representation must be constantly updated taking into account the direction, speed, and amplitude of body motion. Visual information plays an important role in this updating process, notably via optical flow. Here, we systematically investigated how the size and the simulated portion of the field of view (FoV) affect perceived visual speed of human observers. We propose a computational model to account for the patterns of human data. This model is composed of hierarchical cells\textquoteright layers that model the neural processing stages of the dorsal visual pathway. Specifically, we consider that the activity of the MT area is processed by populations of modeled MST cells that are sensitive to the differential components of the optical flow, thus producing selectivity for specific patterns of optical flow. Our results indicate that the proposed computational model is able to describe the experimental evidence and it could be used to predict expected biases of speed perception for conditions in which only some portions of the visual field are visible.}},
  volume = {13},
  pages = {1--15},
  publisher = {Frontiers Research Foundation},
  address = {Lausanne},
  year = {2019},
  slug = {item_3169329},
  author = {Solari, F and Caramenti, M and Chessa, M and Pretto, P and B\"ulthoff, HH and Bresciani, J-P}
}