Cognition chapter 2 (summary) Flashcards
Perception stands between
sensation and cognition
What is the inverse problem?
Different 3D shaped can produce the same 2D image.
2 flows of info?
bottom up- sensory input to perception
Top down- The transformation of sensory input to perception is influence by cognitive factors
What is likelihood principle?
The way an object is perceived is the one most likely (depends on prior knowledge.)
Distinguish dorsal and ventral streams
Dorsal- parietal- spatial
Ventral- temporal- identity
What is meant by neglect?
Loss of spatial information caused by damage to the parietal lobe
What are the receptors of the auditory system?
Cochlea- basilar membrane- hair cells- electrochemical signal to the brain
What is the auditory pathway
auditory nerve- thalamus- auditory cortex
What is meant by tonotopic organisation?
Pitches close to each other project areas close to each other on the auditory cortex.
How is loudness defined?
By the firing rate of a neuron
What is the somatosensory pathway?
Nerve fibres- spinal cord- cerebellum- somatosensory cortex
What is the McGurk effect?
Ambiguous auditory information is ‘solved’ by visual information.
What is meant by visual capture?
Visual perception dominates other perceptual modalities.
What is synaesthesia?
Unusual mixture of perceptions
What is meant by capgras syndrome?
They believe people are replaced by duplicates
