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Cognition & Technology Apr 29, 2014. Neurotrauma & Cognition. Concussion & Cognition. Studies on executive function & attention post-concussion Extent of injury in developing brains (adolescents) compared to adults? Greater risk of subsequent injury w/ premature return to sport.

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concussion cognition
Concussion & Cognition
  • Studies on executive function & attention post-concussion
  • Extent of injury in developing brains (adolescents) compared to adults?
  • Greater risk of subsequent injury w/ premature return to sport
concussion cognition1
Concussion & Cognition
  • Subtle deficits can persist, despite self report
    • Decline in academic performance
    • Body movement, gait
    • Task-shifting
recovery
Recovery

WEEK 4

WEEK 1

WEEK 5

WEEK 2

WEEK 3

80%

RECOVERED

60%

RECOVERED

N=134 High School Male Football Athletes

40%

RECOVERED

Collins et al., 2006, Neurosurgery

research in tbi
Research in TBI

Cognitive effects of one season of head impacts in a cohort of collegiate contact sport athletes: What lifestyle factors might delay cognitive decline/ dementia?; McAllister et al. (assigned reading)

research in tbi1
Research in TBI
  • Millions suffer brain injury each year
    • Many are sub-concussive injuries
  • Test effect of repetitive traumas over season of collegiate sports
    • 214 football & hockey players
    • 45 non-contact sport players
research in tbi2
Research in TBI
  • ImPACT, neuropsychological, cognitive testing
    • Pre & post season
  • Head impacts measured via HIT helmets
    • Rotational & linear acceleration
    • Location, force of impacts
  • Average 469 impacts
research in tbi3
Research in TBI
  • Significantly higher % of contact athletes performed below predicted postseason score
    • Subgroup w/ cognitive impact - higher magnitudes/frequencies
  • No differences pre-season
    • Suggests lack of residual effects
  • Confounds?
braingate
BrainGate

Reading: Human/machine interfaces for recovery of function

http://news.brown.edu/pressreleases/2011/03/braingate

recording cognition
Recording Cognition
  • Implantable, rechargeable, wireless brain sensor - signals from 100 neurons in vivo
    • Freely moving
    • Natural cognitive behaviors
  • Connections betw/ multiple sensors
  • Transition to human research, assistive tech
connectome project
Connectome Project
  • Mapping brain connections
    • Fiber pathways
    • 100 billion neurons, trillions of connections
  • Abnormalities may underlie psychiatric, cognitive disorders
cognition a i
Cognition & A.I.

“Kismet”

cognitive robotics
Cognitive Robotics
  • “Create” cognition in learning robot
    • Reasoning, decision making
    • Perceptual, attentional skills
    • Complex motor coordination
    • Language, communication
  • Act in the real world - learning
modeling human cognition
Modeling Human Cognition
  • Interest in modeling human emotion
  • Developing & expressing emotion in interaction w/ humans
slide17
“Nao”
  • Postures, gestures & movements (non-verbal)
  • Modeled on early attachment behaviors
    • Learn as children do

Dr. Cañamero, University of Hertforshire

slide18
“Nao”
  • Adapt to actions/moods of caregiver
    • Preference, attachment
    • Learn via feedback, strengthen “bond”
    • Shared experience, memory
  • Express variety of emotions
    • “Chooses” when to display
therapeutic value
Therapeutic Value
  • Companions for elderly, ill
  • Social learning for autistic children
  • Support for hospitals, treatment centers
    • Reduce anxiety
    • Interact w/ children
slide20
“Nexi”
  • Non-verbal cues for trustworthiness, dishonesty
    • Arm placement
    • Facial movements
  • Prisoner’s Dilemma
    • Response to human vs. machine

Cyn­thia Breazeal, MIT

Dr. DeSteno, Northeastern University

future of robotics
Future of Robotics?
  • Can robots form social bonds, relationships w/ human counterparts?
  • Results suggest humans willing & able to assign moral intent to Nexi
  • The “uncanny valley”
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