We study basic visual functions, such as color appearance, without reference to any objects.
Before training, LG's basic visual functions such as visual acuity, crowding effects, and contour integration abilities were underdeveloped relative to normal adult vision, and similar to those of 5 6 year olds or younger children, resembling amblyopic vision (Gilaie-Dotan et al., 2009).
Expert and novice athletes are not characterized by differences in tests of basic visual function, such as visual acuity or light sensitivity (Helsen & Starkes, 1999a), but rather they differ in their visual search behavior (for a review, see Vickers, 2007).
Our results indicate that non-invasive intervention in the form of corrective visual training can be very effective in partially overcoming abnormal development of basic visual functions, even when such an intervention is applied years after the critical period.
Prior to training, at the age of 20, LG's basic and mid-level visual functions such as visual acuity, crowding effects, and contour integration were underdeveloped relative to normal adult vision, corresponding to or poorer than those of 5 6 year olds (Gilaie-Dotan, Perry, Bonneh, Malach & Bentin, 2009).
However, how influential can such a recovery of basic visual functions be to mid-level functions as contour integration and higher visual perceptual functions such as face and object recognition?
By contrast, more basic visual functions (e.g. edge detection, form and motion coherence) which may underpin many such downstream deficits and which are mediated largely by upstream occipital mechanisms, have been largely overlooked (cf. Lehmann et al., 2011 a ).
These data together suggest that some basic visual functions, including pattern perception, are built in but that visual experience serves to maintain and elaborate them.
They also looked at several other regions that are involved in higher order visual functions, such as object recognition.
We briefly describe the testing of basic visual functions and discriminative face processing skills.
Could an improvement of perceptual functions take place after the recovery of basic visual functions due to corrected inputs that enter the visual system?
