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Functional Neuroanatomy. adapted from: Brad Dickerson, M.D. bradd@nmr.mgh.harvard.edu. bradd@nmr.mgh.harvard.edu. Functional neuroanatomy. Overview of brain anatomy & systems Localization/networks Scale in the nervous system Sensorimotor systems
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Functional Neuroanatomy adapted from:Brad Dickerson, M.D.bradd@nmr.mgh.harvard.edu
bradd@nmr.mgh.harvard.edu Functional neuroanatomy • Overview of brain anatomy & systems • Localization/networks • Scale in the nervous system • Sensorimotor systems • How our brains interact with the external world (loops) • States ‘of mind’ (and body) • Specific functional systems • Memory & emotion • How our brains use previous experience to modify behavior • Vision & attention; language
Approaches to the study of brain function • Animals & humans: anatomy, physiology, & behavior • Tract tracing • Single unit recordings • Behavioral studies; pharmacology • Patients with focal brain lesions • Behavioral studies & post-mortem anatomy • Structural imaging: In vivo structure/function correlations • Neuroimaging/brain mapping • Functional neuroimaging
Localization of function in the nervous system Phrenology (Gall, early 1800s) 1.The brain is the organ of the mind. 2. The mind is composed of multiple distinct, innate faculties. 3. Because they are distinct, each faculty must have a separate seat or "organ" in the brain.
Localization of function in the nervous system: Paul Broca & language 1860s
What are we doing with our brains at this moment?(The student’s brain) • Feeling your chair • Squirming (moving) • Watching • Listening • Remembering • Paying attention • Sleeping • Feeling anxious • Feeling hungry • What happens when you ask a question?
Neurons communicate with each other primarily through synapses
Glia support and maintain neurons • Protect by surrounding and buffering • Speed transmission by forming myelin sheaths
What are we doing with our brains at this moment?(The student’s brain) • Feeling your chair • Squirming (moving) • Watching • Listening • Remembering • Paying attention • Sleeping • Feeling anxious • Feeling hungry • What happens when you ask a question?