Figure 3
From: Psychological and physiological evidence for an initial ‘Rough Sketch’ calculation of personal space
Measurements of personal space size are highly reliable within subjects, but vary across subjects. (a) Examples of multiple measurements of personal space size, from six subjects, using the passive Stop Distance Procedure (SDP). Data from each subject is shown in a given unique color, arbitrarily chosen for each subject. The SDP values of personal space size remained quite stable across the six trials for each individual subject. (b) Group-averaged personal space size (n = 30), measured using the passive SDP (see the dotted line (Session 1) and the dashed line (Session 2, occurring 2–3 days later)), and using the active version of the SDP (see the solid line; Session 2). Again, these group-averaged SDP data show that personal space size is stable over time, and measurements collected using the passive SDP are consistently larger than those collected using the active SDP. Error bars represent one standard error in each direction.
