• Some Key Concepts from MCB 61 “Brain, Mind, and Behavior” – Winter/Spring 2008 • Useful as a guide for study • Not intended to be an exhaustive list • Lecture 1 (1/22) • Stanley Kubrick and 2001 • hominid evolution • genus Australopithecus • Homo neanderthalensis • Homo sapiens • hominid brain evolution • Lecture 2 (1/24) • mind and mental states • general features of vertebrate brains • anatomical terms used to describe locations • meninges: dura mater, arachnoid layer, pia mater • cerebral spinal fluid • anatomical sections / views of the brain: coronal, sagital • cerebral cortical lobes • other major brain regions: cerebellum, limbic system, brain stem, etc • grey matter, white matter, ventricles • corpus callosum • Lecture 3 (1/29) • brain vasculature: cerebral arteries • forebrain structures: cerebral cortex, basal ganglia, limbic system • brainstem: diencephalon, midbrain, hindbrain, cerebellum • cranial nerves • CNS • PNS: neuromuscular, sensory, enteric, autonomic • autonomic: sympathetic and parasympathetic • human CNS: 100 billion neurons, 5-10x as many glial cells • structure of neuron • Dmitri Mendeleev, periodic table of the elements • elemental abundances in the human body • atoms, molecules • Lecture 4 (1/31) • structure and properties of water • hydrocarbons, organic molecules, molecular structure • hydrophobic, hydrophilic, lipophobic, lipophilic • polarity of molecules • hydrogen bond • amino acids, peptide bonds, polypeptides, proteins MCB 61 Key Concepts 2008 - Page 1 • primary, secondary, tertiary structure of proteins • inferring 3-dimensional structure from sequence • distributed computation of protein folding • Lecture 5 (2/5) • biological macromolecules: protein, carbohydrate, fat/lipid, nucleic acids • phospholipid bilayer membrane • dimensions: small molecules, proteins, lipid bilayer, nerve cells, synapse • deoxyribonucleic acid, DNA, RNA • gene and genetic code • transcription and translation • historical timeline of discovery in genetics • Avery and DNA • Hershey-Chase blender experiment (1952) • The Double Helix story • Lecture 6 (2/7) • Rosalind Franklin • Linus Pauling • government, military, politics: impact on scientific enterprise • neuronal axon • Na/K pump • ATP • energy consumption by brain • neuronal ion gradients • Lecture 7 (2/12) • membrane potential, resting potential • voltage-gated ion channels • action potential • refractory period • myelin • nodes of Ranvier • saltatory conduction • Lecture 8 (2/14) • Paracelsus: “Everything is a poison” • water poisoning • hyponaetremia • blood-brain barrier • tetrodotoxin (TTX) • TTX resistance • saxitoxin • paralytic shellfish poisoning • local anesthetics: cocaine and others • batrachotoxins (BTXs) MCB 61 Key Concepts 2008 - Page 2 • ciguatoxins (CTXs) and ciguatera • multiple ways to interfere with Na-channel function • Lecture 9 (2/19) • neural anatomy / connectivity: Ramon y Cajal and Golgi • structure and function of synapses • dedritic spines • synaptic vesicles • voltage-gated calcium channels • neurotransmitter receptors • reuptake transporters • rapidity of neural signaling • hyperpolarization, IPSP • depolarization, EPSP • integration of multiple inputs by neurons • ionotropic receptor, ligand-gated ion channel • metabotropic receptor, G-protein couple receptor (GPCR) • Otto Loewi and the discovery of the neurotransmitter concept • Lecture 10 (2/21) • GPCRs and amplification • glutamate and CNS excitation • GABA and CNS inhibition • glycine • acetylcholine • dopamine • synthesis of dopamine and other monoamine neurotransmitters • Lecture 11 (2/26) • ACh receptors: nicotinic (ionotropic), muscarinic (metabotropic) • agonist • antagonist • acetylcholinesterase • brainstem nuclei and cortical projections • astrocytes and synapses • EEG • seizures • Lecture 12 (2/28) • antiseizure drugs: mechanism of action • epilepsy • surgical treatments • drug, psychoactive drug, pharmacology • caffeine • adenosine MCB 61 Key Concepts 2008 - Page 3 • sedative-hypnotics: alcohol, barbiturates, benzodiazepines, non-benzodiazepines, general anesthetics, inhalants • therapeutic index • nicotine • arecoline • cannabinoids • Lecture 13 (3/4) • Midterm Exam One • Lecture 14 (3/6) • lethal-injection pharmacology and execution • 8th Amendment of the US Constitution • death-penalty history and usage • opium poppy • Friedrich Wilhelm Sertürner • morphine, codeine • semi-synthetic opioids • synthetic opioids • Lecture 15 (3/11) • varieties of psychoactive drugs • stimulants/caffeine, sedative-hypnotics, tobacco/nicotine • opioid receptor • endogenous opioid neurotransmitters • neuropeptides • coca plant, cocaine • amphetamine-type stimulants • psychedelics/hallucinogens • hallucination • LSD • Albert Hofmann • psilocybin • DMT • mescaline, peyote • Cannabis, cannabinoids • endogenous cannabinoid neurotransmitters • presynaptic neurotransmitter receptors • retrograde signaling • Lecture 16 (3/13) • nervous system development • genome • embryonic development, embryonic stem cells • neuorgenesis, gliogenesis, synaptogenesis • migration, differentiation, maturation MCB 61 Key Concepts 2008 - Page 4 • Roger Sperry • Sperry’s classic experiment • chemo-affinity hypothesis • nerve growth factors / neurotrophins • myelination • synaptic plasticity / neuroplasticity • Lecture 17 (3/18) • brain lesions • stroke, aneurism, tumor, trauma • static brain imaging • exploratory brain surgery, x-rays • CAT scan • MRI, magnetic field, nuclear spin • invasive versus noninvasive techniques • dynamic brain imaging • Penfield’s neurosurgical techniques • EEG, MEG, PET • positron decay, radioactive isotopes • Lecture 18 (3/20) • PET scan, radioactive isotopes • difference images • SPECT • fMRI, tesla, guass, hemoglobin, BOLD • spatial and temporal resolution • Ernest Lawrence, Glenn Seaborg, Robert Oppenheimer, Edward Teller • cyclotron • U-235 and U-238 • fission and fusion bombs • Lecture 19 (4/1) • sensory perception – sensation and perception • chemotaxis • chemoreceptor protein • phototaxis, phototropism • five canonical senses • electromagnetic spectrum • Karl von Frisch • honeyguide • polarized light • echolocation / biosonar • Lecture 20 (4/3) • electric field detection • passive vs. active electroreception MCB 61 Key Concepts 2008 - Page 5 • magnetic field detection • geomagnetic field, navigation • electromagnetic spectrum • anatomy of the eye and retina • photoreceptor cells, photoreceptor proteins • light absorption spectra • Lecture 21 (4/8) • rods, cones • rhodopsin, cone-opsins • retinal distribution of the rods and cones • blind spot • color vision: trichromatic, dichromatic, tetrachromatic • photoreceptor cells: inner segments, outer segment, synapse • retinal, retinol, beta-carotene • Lecture 22 (4/10) • light-induced isomerization of retinal • GPCR amplification of signal • anatomy of retina: cell types and cell layers • retina to LGN to visual cortex pathway • contralateral connectivity • topography of visual space, receptive fields • visual maps in the cortex • functions of different visual areas (V1, V4, V5, posterior temporal lobe) • lesions and consequences: scotoma, hemianopia, cortical achromatopsia, cortical motion blindness, prosopagnosia • Lecture 23 (4/15) • sound waves • properties of sound • speed of sound • hearing ranges • Fourier analysis • ear anatomy • middle ear (ossicles, oval window) • inner ear (cochlea, basilar membrane, hair cells) • connectivity from ear to brain • hearing loss • Lecture 24 (4/17) • noise-induced hearing loss • hearing aids, cochlear implants • vestibular system • semicircular canals, utricle, saccule • otoliths, calcium carbonate MCB 61 Key Concepts 2008 - Page 6 • taste / gustation • taste buds, taste receptor cells • regeneration of taste cells, taste stem cells • different taste receptors: salt, sour, bitter, sweet, umami • ionotropic channels as taste-receptor proteins • GPCRs as taste-receptor proteins • synthetic sweeteners: saccharin, aspartame • principle of limited sloppiness • Lecture 25 (4/22) • synthetic / non-nutritive / “artificial” sweeteners • stevioside • taste receptors: salt, sour, bitter, sweet, umami • flavor = taste + smell + texture • jasmine aroma, complexity • olfactory epithelium. • olfactory neural pathway • human olfactory receptor cells • cilia contain olfactory receptor GPCRs • olfactory stem cells • Lecture 26 (4/24) • Midterm Exam Two • Lecture 27 (4/29) • essential oils, cardamom, jasmine, spices • geranial, geraniol • thiols • stereoisomers, shape, molecular variety and aromatic differences • “asparagus smell” • anosmia: specific vs general • olfactory epithelium, olfactory receptor cells, olfactory receptor proteins, olfactory nerve • olfactory neural pathways: limbic and orbitofrontal pathways • pheromones • vomeronasal pathway • chili, capsaicin • thermal receptors, TRP channels • menthol • isothiocynates: mustard, wasabi, horseradish, etc • Lecture 28 (5/1) • somatosensory receptors: touch/pressure mechanoreceptors, pain, temperature • somatosensory pathway • receptive field • somatosensory homunculus / body map, Wilder Penfield • secondary / accessory somatosensory areas MCB 61 Key Concepts 2008 - Page 7 • lesions to primary and secondary somatosensory cortical regions • sensory neglect syndromes • motor pathway and components: M1, supplementary motor areas, cerebellum • lesion to primary motor cortex versus secondary motor cortices • apraxias • mirror neurons • anosognosia • Lecture 29 (5/6) • palindromes • anosognosia and lateralization of cortical function • Sigmund Freud, psychological defenses • language • aphasia • Broca’s aphasia, production aphasia • Wernicke’s aphasia, comprehension aphasia • Wada test • corpus callosum, commisurotomy • split-brain patients • Lecture 30 (5/8) • Albert Einstein’s brain differences • Hubble Ultra Deep Field • mind-body problem • mind, consciousness • self-awareness in animals • William James’ approach to neuroscience • scientific revolutions MCB 61 Key Concepts 2008 - Page 8