PDF (PhD Thesis Susan Chipchase) - Nottingham eTheses ...

The number of fixations made onto a scene were analysed by
conducting a 3 (emotion) x 3 (scene component) repeated measures ANOVA
which found a significant main effect of scene component (F(1,17) = 6.18, MSe
= 6.97, p < .05, partial eta 2 = .27), with a significantly greater number of
fixations on the background than the object. The main effect of emotion was
not significant [F(2,34) = 0.57, MSe = 0.03, p = .57, partial eta 2 = .03] and nor
was the interaction between emotion and scene component [F(2,34) = 0.03, MSe
= 0.03, p = .97, partial eta 2 < .01].
The number of fixations made were further analysed by examining the
number of fixations made on the object as a proportion of the total number of
fixations on the scene (fixations on the object/fixations on the object +
fixations on the background). There was an average proportion (S.E.) of .47
(.03) on scenes with a negative object, .46 (.02) on scenes with a neutral object
and .46 (.02) on scenes with a positive object. A repeated measures ANOVA
on this proportion with the factor emotion revealed no significant main effect
[F(2,34) = 0.05, MSe < 0.01, p = .95, partial eta 2 < .01]. Planned contrasts
revealed no significant differences between this proportion between scenes
with an emotional or neutral object [F(1,17) = 0.02, p = .88], nor between scenes
with a negative or positive object [F(1,17) = 0.10, p = .75].
The total gaze duration was examined by conducting a 3 (emotion) x 2
(scene component) repeated measures ANOVA for the factors emotion and
scene component which found no significant main effect for emotion [F(2,34) =
0.06, MSe = 42.20, p = .94, partial eta 2 < .01]. The main effect for scene
component did approach significance [F(1,17) = 4.35, MSe = 344932.52, p =
.05, partial eta 2 = .22], with longer total gaze duration on the background than
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