Bartl G, Van Lith G H, Van Marle G W
Br J Ophthalmol. 1978 Apr;62(4):216-9. doi: 10.1136/bjo.62.4.216.
With the use of television equipment the influence of check size and stimulus field on the pattern evoked cortical potentials was investigated. Maximum responses were found with 20' and 40' checks. The major part of the responses was initiated from a ring between 1.25 degrees and 2.5 degrees eccentricity, though relatively per stimulus area the response became progressively larger the smaller the stimulus field.
利用电视设备，研究了方格大小和刺激野对诱发皮层电位模式的影响。发现使用20'和40'的方格时反应最大。大部分反应起始于离心率在1.25度至2.5度之间的一个环带，不过相对每个刺激区域而言，刺激野越小反应就逐渐越大。
