10 - Visual Imagery

10 Visual Imagery - 1 1 2 • What is imagery& what is it for • The study of imagery in psychology • Imagery and perception • The imagery

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Unformatted text preview: 1 1 2 • What is imagery, & what is it for? • The study of imagery in psychology • Imagery and perception • The imagery debate • Physiological evidence • Spatial representations 3 • What is it? • What is it for? 4 Carson City Nevada or San Diego, California? 5 • Mental imagery: experiencing a sensory impression in the absence of a sensory input. • Visual imagery: seeing in the absence of a visual stimulus (US map example). • Applies to other senses too. 6 • Wundt: imagery is one of 3 basic elements of consciousness (along with sensations and feelings) • Follows Aristotle’s idea that thought is impossible without imagery • Galton: people who have difficulty creating images think just fine… 2 7 • Behaviorists were not too keen on studying mental imagery – it is not directly observable. • Allan Paivio (1963) – found that concrete nouns are easier to remember than abstract nouns. • Last 30 years has seen a great deal of research on imagery 8 Roger Shepard 9 1.5 3.0 4.5 6.0 3.0 seconds 4.5 seconds A B C TIME 10 Picture-plan rotation Depth rotation 11 • Response time is proportional to angle of rotation • Consistent with mental rotation of analog image. 12 • Do they share the same mechanisms? • Linear relationship in mental rotation suggests that imagery is based on spatial representations. • Further support: – S. Kosslyn – image scanning 3 13 • Stephen Kosslyn: – Visual imagery is spatial in nature – It should therefore take longer to find things within imagery that are further apart. 14 15 • Imagine the picture • Focus on the front • Is there a flag? • Is there a outboard motor? • Empirical finding: People respond faster to the flag question than to the motor question because the motor is further away from the front. 16 Starting point B e a c h Grassy Marsh Bay Hut 1 Hut 2 Tree & Pond Peninsula 17 • Now imagine walking to the tuft of grass at a constant speed. • Now imagine starting from the starting point again and moving to the beach at the same speed....
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This note was uploaded on 02/21/2012 for the course PYSC 405 taught by Professor Ferreira during the Fall '11 term at South Carolina.

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10 Visual Imagery - 1 1 2 • What is imagery& what is it for • The study of imagery in psychology • Imagery and perception • The imagery

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