The use of Near Infrared Spectroscopy in measuring haemodynamic response of the primary visual cortex to a visual bullseye stimulus with various spatial and temporal frequencies

Authors

Luke Perkins, University of Plymouth

Document Type

Project Article

Abstract

The effects of spatial and temporal frequencies of a visual, sinusoidal bullseye stimulus on haemodynamic responses in V1 were investigated using Near-Infrared Spectroscopy. Eight psychology undergraduates viewed a reversing bullseye pattern with differing spatial and temporal frequencies and haemodynamic responses in V1 were measured. It was found that optimum responses were recorded when the spatial frequency was 4.00 c/deg and when temporal frequency was 7.55 Hz; however no significant differences between frequencies were found. The mixed findings provided some support for past findings, implying that cells are finely tuned to detect certain stimulus properties, and demonstrated NIRS as a valid measuring tool in vision research. Future research needs to be conducted in order to improve the quality of the data.

Publication Date

2011-12-01

Publication Title

The Plymouth Student Scientist

Volume

4

Issue

2

First Page

131

Last Page

154

ISSN

1754-2383

Deposit Date

May 2019

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Recommended Citation

Perkins, Luke (2011) "The use of Near Infrared Spectroscopy in measuring haemodynamic response of the primary visual cortex to a visual bullseye stimulus with various spatial and temporal frequencies," The Plymouth Student Scientist: Vol. 4: Iss. 2, Article 3.
DOI: https://doi.org/10.24382/zx3z-jb28
Available at: https://pearl.plymouth.ac.uk/tpss/vol4/iss2/3