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Associational cortex
introduction
Domina Petric, MD
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Cognition
The neural processes by which the brain
integrates meaningful stimuli and internal
motivations (brain and body states) into
awareness and appropriate behavior.
Stimuli may be external and detected by the
special sensory systems or internal and related
to brain and body state (sense of self).
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Cognition
Brain and body states may reflect emotions, mood,
motivations, memory, appetitive drives, injuries,
disabilities....
Awareness may be objective or highly subjective.
Response may result in somatic and visceral motor
output.
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Cognition
Response may result in altered
patterns of neural activity that
represent explicit knowledge
or emotions, with or without
overt motor expression.
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Behavioral functions
Behavioral
function
Neural process
Attention Modulatory influences of brainstem reticular
formation, hypothalamus and basal forebrain
nuclei on thalamic and cortical processes
Recognition Coding of feature representations in primary and
higher order sensory cortices
Integration Association of disparate processing streams in
associational cortices
Planning Executive associational cortices in prefrontal
cortex
Selection,
execution
Implementation of short and long term plans
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Associational cortices
https://cogsci.stackexchange.com
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Anterior
Association
Area
Limbic
Association
Area
Posterior
Association
Area
Auditory unimodal
association cortex
Visual unimodal
association cortex
Somatosensory
unimodal
association
cortex
Premotor cortex
Primary motor cortex Primary
somatosensory
cortex
Primary visual
cortex
Primary
auditory
cortex
Associational cortices
They bring together
integrating information that
is being processed through
lower to higher order
divisions of sensory and
motor regions.
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Thalamic nuclei
First-order thalamic nuclei send
inputs into the sensory cortex.
Higher-order thalamic nuclei send
inputs into the association cortex and
also recieve inputs from the cortex.
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
Association cortex of the contralateral hemisphere
Corresponding cortical areas Non-corresponding cortical areas
Motor
and
premotor
cortex
Association cortices:
frontal, parietal, temporal
Other
primary
and
secondary
sensory
cortical
regions
VA-VL thalamic
nuclei complex
MD and LP
thalamic nuclei,
PULVINAR
Caudate nucleus,
putamen, cerebellum
Brainstem
modulatory
inputs
affect the
cerebral
cortex.
Cerebral cortex
Literature
https://www.coursera.org/learn/medical-
neuroscience: Leonard E. White, PhD, Duke
University
https://cogsci.stackexchange.com
https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University

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Associational cortex introduction

  • 1. Associational cortex introduction Domina Petric, MD https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 2. Cognition The neural processes by which the brain integrates meaningful stimuli and internal motivations (brain and body states) into awareness and appropriate behavior. Stimuli may be external and detected by the special sensory systems or internal and related to brain and body state (sense of self). https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 3. Cognition Brain and body states may reflect emotions, mood, motivations, memory, appetitive drives, injuries, disabilities.... Awareness may be objective or highly subjective. Response may result in somatic and visceral motor output. https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 4. Cognition Response may result in altered patterns of neural activity that represent explicit knowledge or emotions, with or without overt motor expression. https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 5. Behavioral functions Behavioral function Neural process Attention Modulatory influences of brainstem reticular formation, hypothalamus and basal forebrain nuclei on thalamic and cortical processes Recognition Coding of feature representations in primary and higher order sensory cortices Integration Association of disparate processing streams in associational cortices Planning Executive associational cortices in prefrontal cortex Selection, execution Implementation of short and long term plans https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 6. Associational cortices https://cogsci.stackexchange.com https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University Anterior Association Area Limbic Association Area Posterior Association Area Auditory unimodal association cortex Visual unimodal association cortex Somatosensory unimodal association cortex Premotor cortex Primary motor cortex Primary somatosensory cortex Primary visual cortex Primary auditory cortex
  • 7. Associational cortices They bring together integrating information that is being processed through lower to higher order divisions of sensory and motor regions. https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 8. Thalamic nuclei First-order thalamic nuclei send inputs into the sensory cortex. Higher-order thalamic nuclei send inputs into the association cortex and also recieve inputs from the cortex. https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University
  • 9. https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University Association cortex of the contralateral hemisphere Corresponding cortical areas Non-corresponding cortical areas Motor and premotor cortex Association cortices: frontal, parietal, temporal Other primary and secondary sensory cortical regions VA-VL thalamic nuclei complex MD and LP thalamic nuclei, PULVINAR Caudate nucleus, putamen, cerebellum Brainstem modulatory inputs affect the cerebral cortex. Cerebral cortex
  • 10. Literature https://www.coursera.org/learn/medical- neuroscience: Leonard E. White, PhD, Duke University https://cogsci.stackexchange.com https://www.coursera.org/learn/medical-neuroscience: Leonard E. White, PhD, Duke University