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revision 1.69 by jvk, Sun Mar 30 14:06:20 2003 UTC revision 1.70 by jvk, Sun Mar 30 16:01:51 2003 UTC
# Line 1304  than the solid colors. Line 1304  than the solid colors.
1304  Five participants naïve to the hypothesis and our texturing work  Five participants naïve to the hypothesis and our texturing work
1305  performed the experiment in both conditions.  performed the experiment in both conditions.
1306    
1307  \emph{Design and materials.}  \emph{Stimuli.}
1308  15 target backgrounds and 15 distractor backgrounds were randomly  15 target backgrounds and 15 distractor backgrounds were randomly
1309  chosen for both conditions.  chosen for both conditions.
1310  The distribution of the solid colors was the same that is used for  The distribution of the solid colors was the same that is used for
1311  the colors of textures with the difference that the highest  the texture colors except that the highest
1312  lighness tail was de-emphasized to increase the otherwise low  lighness tail was de-emphasized to increase the otherwise low
1313  discriminability of very light, unsaturated colors.  discriminability of very light, unsaturated colors.
1314    
# Line 1354  the five subjects. Line 1354  the five subjects.
1354    
1355  The results are summarized in Table~\ref{tableresults}.  The results are summarized in Table~\ref{tableresults}.
1356  A repeated measures analysis of variance indicates that  A repeated measures analysis of variance indicates that
1357  the observed superiority of the textures is statistically  the average recognition performance is significantly better
1358  significant [F(1,4) = 19.0, p = .012].  for the textures than for the solid colors [F(1,4) = 19.0, p = .012].
1359  % RT less for correct responses: [F(1,4) = 5.2, p = .082]  %The recognition of solid colors was only almost statistically significantly
1360  %  %better than random [F(1,4) = 5.7, p = .075].
1361  %The recognition performance of the textures was good while  %Whereas ``correct > incorrect'' for textures: [F(1,4) = 24.7, p = .0077]
1362  The solid colors do not seem to have enough variation for unambiguous  The solid colors do not seem to have enough variation for unambiguous
1363  recognition.  recognition.
1364    % RT less for correct responses: [F(1,4) = 5.2, p = .082]
1365    % RT different for textures and colors: [F(1,4) = .0, p > .1]
1366    
1367    
1368  %Our experience shows that at least the most recurring textures  %Our experience shows that at least the most recurring textures
1369  %are not only recognized but can  %are not only recognized but can

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