Editing Stimulus modality (section)

===Description===
The stimulus modality for vision is light; the human eye is able to access only a limited section of the [[electromagnetic spectrum]], between 380 and 760 [[nanometre]]s.<ref name=Russell>{{cite book|last=Russell|first=J.P|author2=Wolfe, S.L. |author3=Hertz, P.E. |author4=Starr, C. |author5=Fenton, M. B. |author6=Addy, H. |author7=Denis, M. |author8=Haffie, T. |author9=Davey, K.   |title=Biology: Exploring the Diversity of Life, First Canadian Edition, Volume Three|year=2010|publisher=Nelson Education|isbn=978-0-17-650231-7|pages=833–840}}</ref> Specific inhibitory responses that take place in the visual cortex help create a visual focus on a specific point rather than the entire surrounding.<ref>{{cite web|last=Yarbrough|first=Cathy|title=Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see|url=http://www.eurekalert.org/pub_releases/2005-10/si-brt102105.php|work=EurekAlert!|accessdate=29 July 2012}}</ref>