WEEK 11: Visual Imagery, Language Flashcards
TRUE OR FALSE:
Kosslyn’s mental scanning experiment were not challenged by other scientist.
False.
TRUE OR FALSE:
Evidence of physiological differences between imagery and perception includes differences in areas of the brain activated and brain damage causing dissociations between perception and imagery.
True.
IDENTIFICATION:
The ability to recreate the sensory world in the absence of physical stimuli; occurs in senses other than vision
Mental imagery
IDENTIFICATION:
Seeing in the absence of a visual stimulus
Visual imagery
IDENTIFY THE PROPONENT:
Who proposed that images were one of the 3 basic elements of consciousness along with sensation and feelings?
Wundt
IDENTIFICATION:
“Thought is impossible without an image” vs “Thinking can occur without images”
Imageless thought debate
IDENTIFY THE PROPONENT:
Who observed that people who had great difficulty forming visual images were still quite capable of thinking?
Francis Galton
IDENTIFICATION:
Concrete nouns create images that other words can hang onto
Conceptual peg hypothesis
IDENTIFICATION:
Measured memory
Example: If presenting the pair boat-hat creates an image of a boat, then presenting the word boat later will bring back the boat image, which provides a number of places on which participants can place the hat in their mind.
Associate learning
IDENTIFY THE PROPONENT:
Measured memory
Paivio (1963)
IDENTIFICATION:
Measures the amount of time needed to carry out various cognitive tasks.
Participants are asked to indicate as rapidly as possible whether the two pictures were of the same object or not. The larger the angle, the longer it took to make a decision. It showed that participants are mentally rotating one of the views to see whether it matched the other one.
Mental chronometry / Mental rotation
IDENTIFY THE PROPONENTS:
Mental chronometry / Mental rotation
Shepard and Metzler (1971)
IDENTIFICATION:
Spatial correspondence between imagery and perception
Mental scanning
IDENTIFY THE PROPONENT:
Mental scanning
Supported by a number of experiments where participants are asked to create mental images and then scan them in their minds. He proposed that as participants scanned the image in their mind, they may have encountered other interesting parts, and such distractions may have increased their reaction time.
Stephen Kosslyn
IDENTIFICATION:
A debate about whether imagery is based on spatial mechanisms such as those involved in perception, or on mechanisms related to language, called “propositional mechanisms”.
Imagery debate
IDENTIFY THE PROPONENT:
Imagery debate
Pylyshyn (1973)
IDENTIFICATION:
A representation in which different parts of an image can be described as corresponding to specific locations in space.
Spatial representation
IDENTIFICATION:
Pylyshyn argued that just because we experience imagery as spatial, doesn’t mean that the underlying representation is also spatial, such is ____________________, something that accompanies the real mechanism but is not actually part of the mechanism itself.
Epiphenomenon
IDENTIFICATION:
One in which relationships can be represented by abstract symbols, such as an equation or a statement.
Propositional representation
IDENTIFICATION:
Representations that are like realistic pictures of an object
Example: Kosslyn’s boat
Depictive representations
IDENTIFICATION:
States that participants unconsciously use knowledge about the world in making their judgement.
Tacit knowledge explanation
IDENTIFY THE PROPONENTS:
Flashed dot experiment
Finke and Pinker (1982)
IDENTIFICATION:
An experiment wherein unfamiliar stimuli that participants see only for a fraction of a second is used.
First, they briefly presented a four-dot display, and after a two-second delay, presented an arrow. The task was to indicate whether the arrow was pointing to any of the dots they had just seen.
THE RESULT: The participants wouldn’t have had the time to memorize the distances between the arrow and the dot before making their judgements; it is unlikely that they used tacit knowledge about how long it should take to get from one point to another.
Flashed dot experiment
IDENTIFICATION:
Participants were asked to imagine two animals and to imagine that they were standing close enough to the larger animal that it filled most of the visual field. “Does the rabbit have whiskers?”
Repeated procedure – participants were asked next to imagine a rabbit and a fly next to each other. Results showed that participants answered questions about the rabbit more rapidly when it filled more of the visual field, providing evidence that images in our mind are spatial, just like in perception.
Behavioral Experiments: Comparing Imagery and Perception Size in the Visual Field