Texte intégral / Full text (pdf, 20 MiB) - Infoscience - EPFL
Texte intégral / Full text (pdf, 20 MiB) - Infoscience - EPFL
Texte intégral / Full text (pdf, 20 MiB) - Infoscience - EPFL
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6.3. Eye-tracking as Assessment and Diagnosis Tool<br />
Subject<br />
CA<br />
Avoidance<br />
××<br />
Hypervigilance<br />
××<br />
Hyperscanning<br />
××<br />
Blink rate<br />
√√<br />
Blink duration<br />
××<br />
CB ×× ×× ×× ×× ××<br />
CC ×× ×× ×× ×× ××<br />
CD ×− ×− ×− ×− ×−<br />
CE<br />
PA<br />
PB<br />
PC<br />
PD<br />
×−<br />
××<br />
××<br />
××<br />
×−<br />
×−<br />
√<br />
×<br />
≈≈<br />
××<br />
×−<br />
×−<br />
××<br />
√√<br />
××<br />
√<br />
−<br />
×−<br />
√√<br />
√√<br />
××<br />
×−<br />
×−<br />
××<br />
√<br />
××<br />
×<br />
×−<br />
PE ×− ≈ − ×− ×− ×−<br />
Table 6.9: Recapitulation of present symptoms before and after treatment - Auditorium scene. A<br />
tick symbolizes the presence of the behavior, a cross symbolizes its absence. The wave represents<br />
a slight presence of the behavior and the dash, an absence of results.<br />
Subject<br />
CA<br />
Avoidance<br />
××<br />
Hypervigilance<br />
××<br />
Hyperscanning<br />
××<br />
Blink rate<br />
√<br />
×<br />
Blink duration<br />
××<br />
CB ×× ×× ×× ×× ××<br />
CC ×× ×× ×× ×× ××<br />
CD ×− ×− ×− ×− ×−<br />
CE<br />
PA<br />
PB<br />
PC<br />
PD<br />
×−<br />
××<br />
√<br />
××<br />
√<br />
×<br />
−<br />
×−<br />
××<br />
××<br />
××<br />
×−<br />
×−<br />
√<br />
××<br />
√√<br />
×<br />
√<br />
−<br />
×−<br />
√√<br />
√√<br />
√√<br />
√<br />
−<br />
×−<br />
××<br />
√<br />
××<br />
×<br />
×−<br />
PE ×− ×− ×− ×− ×−<br />
Table 6.10: Recapitulation of present symptoms before and after treatment - Bar scene. A tick<br />
symbolizes the presence of the behavior, a cross symbolizes its absence. The wave represents a<br />
slight presence of the behavior and the dash, an absence of results.<br />
equally presented high rates in the post-therapeutic phase. On the other hand, subject PC,<br />
who had very high blink durations before therapy, showed a very noticeable improvement<br />
after therapy. This analysis, as the two others, therefore equally seems to be a promising<br />
tool. When analyzing the eye blink results, it is important to note the correlation between<br />
eye blink rate and eye blink duration. A person presenting very long eye blinks, such as<br />
shown in Figure 6.10, will necessarily have a lower blink rate.<br />
It is clearly visible, when analyzing the overall results presented in Tables 6.9 and 6.10,<br />
that the subjects from the phobic group have a tendency to present the symptoms we have<br />
described. The control group subjects, however, do not; only one subject presented one of<br />
the symptoms before and after therapy. Moreover, we can see that each of the subjects from<br />
the phobic group has at least one of the symptoms. We can therefore conclude that the whole<br />
series of tests consists of a good indicator of the presence of visual avoidance behaviors.<br />
93