Exam 4 Flashcards
(90 cards)
Embodied cognition
Meaning is not an abstract list of semantic features, but is embodied within perceptual motor systems- affords a way of grounding semantics into concrete visual, motor, auditory systems
Ginsberg and Kaschak
Participants make sensibility judgements by pulling a handle towards them or pushing the handle away from them
Results of Ginsberg and Kaschak
Participants were faster pulling the handle toward them (regardless of sensibility results) if the sentence read was “Nancy gives YOU a book” vs “you give Nancy a book “
Speer et. Al (2009)
neuroimaging study of individuals during comprehension of a story activated similar areas in the perceptual motor areas of brain that were activated by aspects of the text- motor activity in the text would activate motor areas in the brain etc.
Speer results
Supports model in which simulation ins critical for comprehension
read about riding a bicycle- motor areas consistent with riding a bicycle
Martin 2005- lesion data
suggesting motor area lesions produce more difficulty with tool use, whereas visual regions produce more difficulty identifying living things (what do you do with a brush/ scissors)
Results of Martin 2005
Tools we interact with physically- concepts are tied to motor systems themselves
items we imagine visually- tied to visual system so hard to bring up after damage to those areas
those with difficulty with language-lesion area determined certain deficits
Smallworld Network Perspectives (Steyvers and Tenenbaum)
relatively small number of pathways connecting any two nodes (6 across all people in US)
relatively small number of notes that are highly connected to other nodes (follows a power law)
Preferential attachment
as we build a network overtime, some nodes get laid down earlier than other- new nodes are preferentially attached to the older nodes (instead of making their own single node)
Milestone concepts
Across development, new networks of nodes originating
Latent Semantic Analysis (Landauer and Dumais)
Poverty of the Stimulus: how could children so much about word meaning so quickly without explicitlylbeing taught about the concepts? Develop grammar/ vocabulary at a remarkable rate
Unstructured environment and language development
Arguenment for innate structure for language acquisition, and specialized learning devices (semantic primitive features) Analyzed a giant amount of text- each paragraph is a separate entity- then you have words in each paragraphs- do these words appear in other similar paragraphs?
Results of latent semantic analysis
indicated that this provides a very useful way of capturing meaning
nothing like a semantic feature in the model…
contexts in which stimuli appear can be remarkably revealing… (Obama and words like good/ bad for media bias)
Visual Imagery
Problem of a “mind’s eye” and interpreting it
Large individual differences- some better and worse than others
Dual Code Theory (Pavio)
Possibly two types of visual representation
- propositional/ verbal
- imagery based grounded in perceptual/ motor systems (related to embodied cognition)
Evidence for Dual code theory
Concreteness effect in memory
Present concrete words with both imagery and verbal code (you’ve seen dog as well as seen the word dog, tangible)
Abstract word supposedly only have verbal code
Size and reaction time in Pavio Study predictions
Words should NOT be influenced by size congruency of picture (because words have to be translated into images, size of words shouldn’t mattter. Pictures SHOULD be influenced by congruency (since pictures are already in the image format) and words should be SLOWER than pictures
Results of Pavio RT study
Reaction time for words was not determined by size congruency, but pictures did, though pictures were always slower than words (same as predictions)
Shepherd and Metzler mental rotation
Took just as long to mentally rotate the shape to check if it fit against the model as it would have to physically rotate the shape
Cooper and Shepard (1973)
Letter rotation- at the long interval, participants can sufficiently rotate the stimulus as if it was already rotated
(Allows one to measure mental rotation time)
Kosslyn, Ball and Reiser
Participants looked at picture and asked to generate a mental image, then asked to mentally walk from image to image in their head. time walking from place to place proportionate to distance in cm between items in the image
Other findings from Kosslyn’s mental image study
Limitations on Image “Space”
Image focusing experiments, focus in on the nose
of a bunny, when it is next to an elephant or next to a bumblebee.
– Mental Walking, mentally walk towards a one story or two story house
Results from SHepard and Kosslyn/ conclusions
Image processing follows the same constraints that engage directly engage perceptual/motor
systems
– E.g., it is as if you are physically rotating the stimulus or mentally walking etc.
Roland and Friberg
Used neuroimaging to measure blood flow as
participants were mentally walking, doing arithmetic, thinking of a melody etc…<
– Found that there was overlap in neural areas for
real vs imagined processing – Consistent with the embodied cognition
mentioned earlier, e.g., the Speer et al. stud