lec05-1 - Visuospatial Sketchpad (VSP) Psychology 355:...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Visuospatial Sketchpad (VSP) Psychology 355: Cognitive Psychology Winter Quarter 2009 2/2/2009
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
UW Psych 355, Miyamoto, Win '08 2 Outline • Visuospatial Sketchpad (VSP) – what is it? • Behavioral evidence for the VSP: How do we know that there is a visual/spatial short-term store that is different from the phonological loop? o Brandimonte’s mental subtraction experiment o Brooks’ experiment on image scanning • Behavioral and neuropsychological evidence for spatial rehearsal: How do we know that visual/spatial information is actively maintained? Next: Reminder re Working Memory Model
Background image of page 2
P 355, Miyamoto, Winter '09 3 Baddeley-Hitch Working Memory (WM) Model 1. Phonological Loop (PL) o Short-term storage o Rehearsal o Manipulation of verbal information 2. Visuospatial Sketch Pad (VSP) o Storage & manipulation of visual images and spatial information. 3. Central Executive o Directs activity within the PL or VSP. o Coordinates activity between PL or VSP, and between these components and long-term memory (LTM). Next: Evidence for VSP – Brandimonte’s Mental Subtraction Experiment
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
P 355, Miyamoto, Winter '09 4 Brandimonte: Mental "Subtraction" Task Stimulus 1 is an example of Brandimonte's stimuli. First the subject sees the stimulus on the left (A). Next, he/she sees the stimulus on the right (A’). Subtraction Task: The subject's task is to mentally "subtract" the second stimulus from the first, and name the object that remains. Answer to Stimulus 1: Ice cream cones. • Stimulus 2 is another example: Subtract B’ from B. Answer to Stimulus 2: Fish A A' B B' Brandimonte, M. A., Hitch, G. J., & Bishop, D. V. M. (1992). Influence of short-term mem-ory codes on visual image processing: Evidence from image transformation tasks. Journal of Experimental Psychology: Learning, Memory, and Cognition, 18, 157-165. Next: Articulatory Suppression Combined with Mental Subtraction
Background image of page 4
P 355, Miyamoto, Winter '09 5 Mental Subtraction Experiment is Another Example of Articulatory Suppression Condition 1: Subject does the mental subtraction task. Condition 2: Subject says "la, la, la, la, . ..." while doing the mental subtraction task. Finding: Subjects do better in Condition 2 than in Condition 1. Why? 1 2 Next: Interpretation of Mental Subtraction Experiment
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
P 355, Miyamoto, Winter '09 6 Interpretation of Mental Subtraction Experiment • The stimuli were designed so that subjects could name the object before "subtracting" the second image. E.g., with stimulus 1, a subject might think "headphones". • If a subject silently says "headphones" while looking at the left part of
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 20

lec05-1 - Visuospatial Sketchpad (VSP) Psychology 355:...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online