Split Fovea Theory Flashcards
Who supports SFT?
Ellis & Brysbarert
whats is the biological (eye) argument of SFT?
that each fovea is divided precisely at its vertical midline
what does this mean for the brain?
information on either side projects to its contralateral hemisphere with no overlap
what is the long standing theory about foveal vision?
that there is an overlap on 1-3 degrees at the centre of the foveal view
who conducted research that attempts to disprove SFT?
Jordan & Paterson
For SFT research to be valid, what do participants need to do?
they need to fixate at a very specific location
what did research find about participants fixation
they fail to fixate at the right spot around 50% of the time
why is this an issue for SFT?
if participants were not fixating a the correct spot then that would impact the findings due to the very precise nature of SFT
what does J+P argue has consequential effects for precise visual processing
the fact that the cone receptor density changes rapidly over the centre of the fovea
What does J+P argue is the biggest issue in SFT research?
the lack of eye movement trackers, and when there is eye movement tracking the information about the spatial and temporal abilities of the the equipment is unclear, which means the accuracy of results could be way off
