Cognitive Processes PSY 334. Chapter 2 – Perception. Object Recognition. Two stages: Early phase – shapes and objects are extracted from background. Later phase – shapes and objects are categorized, recognized, named. Disruptions of Perception.
Chapter 2 – Perception
Some patients would have trouble drawing this chair due to the missing contours.
Some patients would have trouble recognizing a chair from this perspective.
The subject can copy the anchor accurately (as shown) but then cannot tell you what it is.
Nearer things move faster, farther things move slower
Why do we see an H in the first word but an A in the second word?
People are more likely to see (b) and (c) not (d) or (e) in figure (a)
The Fusiform Face Area:
Why did it look more normal when viewed upside down?
Figure 4.24 (a) Greeble stimuli used by Gauthier. Participants were trained to name each different Greeble. (b) Brain responses to Greebles and faces before and after Greeble training. (a: From Figure 1a, p. 569, from Gauthier, I., Tarr, M. J., Anderson, A. W., Skudlarski, P. L., & Gore, J. C. (1999). Activation of the middle fusiform “face area” increases with experience in recognizing novel objects. Nature Neuroscience, 2, 568-573.)
Notice the abrupt shift from /b/ to /p/
Subjects seeing the letter K in the context of a word did 10% better than the other conditions.
The same details are in both stimuli but people identify more objects when the overall scene makes sense.