Figure 1
From: Is there a dysfunction in the visual system of depressed patients?
A. Electro-oculogram (EOG). Recording in a normal control (upper), an atypical (middle-continuous line) and a melancholic patient (lower-dotted line). The control subject has Arden ratio = 224, the melancholic Arden ratio = 295, and the atypical patient Arden ratio = 248. However, although all ratios are within normal limits, the curves of the depressed patients have lower amplitude. B. flash-ERG. Upper: normal latency of a and b waves (control subject) Lower: slightly increased than normal latency of a and b waves (melancholic patient) All recordings are within normal range.