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Definition
| scanned Leborgne's brain and found the Superior Longitudinal Fasciculus missing in his brain |
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| 15/30 affected family members, language disorder, Foxp2 broken gene |
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| pigmy chimp, raised with humans. knows how to communicate to people by pressing buttons and understands language |
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| brain anatomy <--> dynamics |
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| relationship between activity and inactivity in the brain |
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| the neuron is the basic structural and functional unit of the brain |
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| Cajal's law of dynamic polarization |
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Definition
| neural/electrical transmission proceeds in one direction |
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Definition
| sleep spindles and K complex |
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| route-centric frame of reference |
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Definition
| directions, route is defined by person's actions |
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Term
| three types of depth perception |
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Definition
| 1) motion parallax, texture gradient, occlusion, retinal disparity |
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Term
| Penfield and Jasper, 1951 |
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Definition
| homonculus, egocentric map |
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Definition
| egocentric map, finger sensitivity for humans, whiskers for rats |
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Definition
| V1, retinotopic/occipital |
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| directional tuning pinwheels, a bar of light = emission of action potentials/frequency of APs |
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Definition
| where pathway, (movement direction and spatial location) |
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Definition
| what pathway (categorization) |
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Definition
| cognition is in the brain and body, not just in the brain |
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Definition
| allocentric (world centered), spatial mapping via grid cells |
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| 3 components of decision making |
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Definition
| decision, uncertainty, costs |
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Definition
| fixation, targets, motion, saccade |
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Term
| random dot motion coherence |
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Definition
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Definition
| upward slope with plateau, directly related |
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| reaction time vs. coherence |
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Definition
| downward slope, indirectly proportional |
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Term
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Definition
| Sustained Response, signal motion direction and strength |
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Definition
| Ramping Response, accumulate info over time, |
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Term
| Wald & Wolfowitz (1948): Optimal Policy |
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Definition
| accumulate evidence over time, stop if total evidence exceeds "left" or "right" boundary |
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Definition
| optimality depends on loss function |
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Definition
| involves striate, extrastriate, inferotemporal lobe and superior temporal sulcus, among others |
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Definition
| direct-matching hypothesis, map visual information onto motor representations of the same action |
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Definition
| bridges between perception and action that allow for stimulation : mirror neurons, EEG MU rhythms |
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Definition
| visual system's ability to recover object information from sparse input: gender, activity engaged in, emotional state |
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Term
| brain circuit for Social Perception (SP) |
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Definition
| processing of information that results in the accurate analysis of the intentions of others. |
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Definition
| classes of neurons that discharge when a monkey does and sees an action by another monkey (found in F5, inferior parietal ctx) |
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| mirron neurons activated by |
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Definition
| goal directed actions (reaching, holding), observation of similar actions performed by "biological" agents |
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Definition
| measured mu power under different observation conditions (non interacting, social action spectator, social action interactive, visual white noise) |
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Term
| autism spectrum disorder (ASD) |
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Definition
| problems in social ability, intelligence, language acquisition and deficits in mirror neuron system |
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Definition
| located in the hippocampus, responds to "x marks the spot", cell fires when rat reaches a spot |
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Term
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Definition
| entorhinal ctx, respond to allocentric, arise from place cells |
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Definition
| death of dopamine cells in the basal ganglia |
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Definition
| knowing where your body is in space |
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Definition
| tremors, akinesia, rigidity, loss of postural reflexes |
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Definition
| difficulty carying out purposeful movement, small shuffling steps while walking, no expression on face, can stare without blinking |
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Definition
| increased resistance to passive movement |
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| loss of postural reflexes |
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Definition
| a threat to posture responds w/ resistence |
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| sensorimotor mapping problem |
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Definition
| how to control joint angles of arm given knowledge of coordinates of target in external space |
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Term
| modes of target presentation |
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Definition
| no vision, finger vision, target vision |
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Definition
| posterior parietal lobe lesion, problem producing motion |
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