19.02.2013 Views

j *@ - Sociedade Brasileira de Psicologia

j *@ - Sociedade Brasileira de Psicologia

j *@ - Sociedade Brasileira de Psicologia

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

726<br />

E<br />

*<br />

=<br />

o<br />

c<br />

*<br />

œ .<br />

X<br />

FIGURE 1<br />

hom son ( 1 ) .-<br />

Exper iment 1 a.-<br />

*<br />

@<br />

*<br />

@'<br />

@'<br />

.<br />

1 .* *<br />

-1 ..* .<br />

F<br />

0 4 8 12 16 20<br />

@*<br />

Target Diqtanc: (m)<br />

<strong>de</strong>pth. Gilinsky's (1951) classic work on perceived size and distance indicates that<br />

constant physical intervals in <strong>de</strong>pth apm ar increasingly foreshortened with increasing<br />

egocentric distahce, prestlmably because of the faloff in cue availability. Figure 2<br />

gves the results of one of her exjeriments in which equaly appearing <strong>de</strong>pth intervals<br />

were constl cted' along a single line in <strong>de</strong>pth on the ground. This result and other<br />

convere g evi<strong>de</strong>nce hl her paper strongly suggest that perceived egocentric distance is<br />

a negatively accelerated function of physical distance even un<strong>de</strong>r full-cue conditions.<br />

'<br />

What we have is an apparent paradox, for the n omson results and other<br />

evi<strong>de</strong>nce indicate that subjects do ç:know ' where things are in near space, yet visual<br />

taskx performed tm<strong>de</strong>r similar conditions imply consi<strong>de</strong>rable distortion of visual space .<br />

*

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!