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Lecture 3

PSC 130 Lecture Notes - Lecture 3: Face Perception, Models 1, Fusiform Face Area

Course Code
PSC 130

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January 17, 2017:
I. Chapter 3: Working Memory
A. Baddeley (1986) showed there are 3 different
components to working memory
1. Articulatory/Phonological Loop speech
processing, inner voice
2. Visuospatial Sketch Pad setting up,
manipulating visual images
3. Central Executive control mechanism that supervises slave systems
B. Evidence for the Phonological Loop
1. Confusion errors
Conrad (1964)
a. *Short term recall errors tend to sound like old items, they don’t look like old items (even
when the study words are presented visually)
b. Ex: Study: PXAT Recall: “VXAT”
i. STM has a phonological (acoustic) code
2. The Word Length Effect
a. Using the word span test
b. *Recall decreases as the number of syllables in each word increases
c. Consistent with phonological code
3. The Articulatory Suppression Effect
a. Subjects say “the-the-the…” during word span task
b. *Articulatory suppression reduces the word length effect
c. Consistent with phonological code
C. Evidence for Visual STM
1. Visual Rotation Effects:
Shepard & Metzler (1971)
a. Same/different judgements for rotated
letters and objects
b. *RT (response time) increased with rotation
c. Consistent with visual code
2. Dual-Task Interference
Heyer & Barrett (1971)
a. Letters were shown in the boxes
i. Verbal-addition or visual comparison were given in
between presentation and test
b. *10s verbal task disrupted verbal memory
c. *10s visual task disrupted visual memory
d. “Crossover” dissociation between visual and verbal STM
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