| Abstract: | Describes several studies to illustrate the type of work done in dealing with responses evoked by patterned visual stimuli. In each study Ss sat in a "darkened electrically shielded room and viewed patterned stimuli." Visual patterns were illuminated to medium brightness by a strobe lamp approximately 1/sec. "Each time the strobe lamp was fired the computer (a CAT) was triggered, storing a record of the brain's activity occurring during a given period of time following the onset of stimulation." Resultant cortical responses typify those found in adults with normal vision. It is considered "imperative that longitudinal studies be carried out, both to provide evoked-response correlates of maturational processes related to visual perception and to provide normative data for the possible clinical application of this technique." (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
