Documents about Positron Emission Tomography
PSY 3315 TEST 1 Study Guide
Texas State, PSY 3315
Excerpt: ... onditioning and associated terms systematic desensitization aversive therapy Watson Little Albert Thorndike Skinner Operant conditioning and associated terms Observational learning Cognitive/behavioral model Ellis Beck Chapter 3 assessment, process of classification neurological tests CAT, computerized axial tomography PET, positron emission tomography MRI, magnetic resonance imaging EEG, electroencephalograph psychological tests WAIS - R WISC - R Rorschach Thematic Apperception Test Bender-Gestalt projective vs. objective Kraeplin Diagnostic and Statistical Manual of Mental Disorders I DSM II, DSM III, DSM III-R, DSM IV 5 Axes of the DSM IV History of the DSM system, dates, changes, current status, criticisms. labeling, positives and negatives validity, reliability Note: You are responsible for all classroom lecture material, whether it is on the study guide or not. ...
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Lecture_6
Cornell, PSYCH 1200
Excerpt: ... + + + - - - + + - + + + surround center and surround CNS 1m 10 cm 1 cm 1 mm Interactive Modules Topography Receptive Fields Action Potential Neurotransmitters Systems Maps Networks Neurons 100 m 1 m 1 Excitatory/Inhibitory Synapses Molecules Example Systems in the CNS EVERYTHING! CNS Interactive Modules Systems Topography Receptive Fields Action Potential Neurotransmitters Maps Networks 1m 10 cm 1 cm 1 mm Neurons 100 m 1 m 1 Excitatory/Inhibitory Synapses Molecules The Central Nervous System (and some dude's naked butt) Brain and Spinal Cord Functional Localization in the Human Brain Lesion and Deactivation Studies (Brain Damage, Wada Test, Cooling Coils, TMS) Direct Cortical Stimulation (also recording) Event-Related Potentials (ERPs) Positron Emission Tomography (PET Scan) functional Magnetic Resonance Imaging(fMRI) Brain Damage Functional Localization in the Human Brain Lesion and Deactivation Studies (Brain Dama ...
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Chapter 2 - ii
CSU Northridge, MRM 03408
Excerpt: ... Chapter 2 (continued) Nervous System Techniques for Studying the Brain Invasive Techniques Electroencephalograph (EEG) Computerized Tomography (CT) Positron Emission Tomography (PET) Magnetic Resonance Imaging (MRI) Brainstem The Limbic System The Cerebral Cortex Brain Damage Broca's aphasia Wernicke's aphasia Damage to the angular gyrus Psychology The Human Experience The split brain Neglect syndrome Endocrine System What is its primary function? What do hormones influence? What is the master gland? ...
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Ch2_part2
Minnesota, PSY 1001
Excerpt: ... Brain in a Vat: How Does Biology Influence Behavior? Continued 6/19/06 Continued lecture from notes from last Wednesday Techniques for Studying the Brain Non-Invasive CAT Scans MRI PET Scans and SPECT Scans Electrical Activity MEG Invasive Brain Lesions Brain Stimulation Brain Cell Activity CAT Scans: Computer Imaging of the Brain Computerized axial tomography MRI: Details of Brain Structure Magnetic resonance imaging Creates very detailed images of brain PET Scans and SPECT Scans: The Brain in Action Positron emission tomography scan Injection PET Scans and SPECT Scans: The Brain in Action (continued) Single photon emission computerized tomography scan Injection Functional MRI: More Detail, No Isotopes Functional magnetic resonance imaging (fMRI) Advantages over PET scan Angiograms Enhanced X-rays Dye injected Measuring the Electrical Activity of the Brain Electroencephalograms (EEG) and evoked response potentials (ERPs) ...
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Notes Mar06
Arizona, INDV 101
Excerpt: ... CT Scan (cat scan) CT (computed Tomography) also called cat scan: Series of x-rays that portray structure of brain PET ( positron emission tomography ): Radioactive glucose is picked up by PET scanner to portray activity MRI (magnetic resonance imaging): Uses magnetic energy to produce images of structures if the brain. fMRI ( functional magnetic resonance imaging); Biological Psychology: Studies links between biology and behavior (subfield of neuroscience) Neuron: made up of: Dendrites: Receives signal(receives neurotransmitters) Cell Body: provides the firing inside the dendrite. Axon: Path of electrical transmission Axon terminal: Receives axon signal Synapse: Space between the axon terminal and the dendrite where Neurotransmitters and chemicals are Neurotransmitters: Carries the information ...
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L10
UCSB, PSYCH 003
Excerpt: ... Psychology 3 The Biological Basis of Psychology Lecture 10 Cognitive Neuroscience Linking the Mind & the Brain Paul Broca (1824-1880) Brain Localization: The concept that specic brain regions are responsible for various types of experience, behavior, and psychological processes. Patient Tan Brocas Area Linking the Mind & the Brain Phineas Gage Phrenology Sir Francis Galton Linking the Mind & the Brain Linking the Mind & the Brain Methods of Cognitive Neuroscience Patient Studies Neuroimaging Studies Positron Emission Tomography (PET) Functional Magnetic Resonance Imaging (fMRI) Electrophysiological Studies Single-cell recordings Intracranial Electrode Recordings Event-Related Potential Recordings (ERP) Patient Studies Lesions, surgery, or focal injury Diseases & developmental disorders Special cases Brocas aphasics Alzheimers Patients Split-Brain Patients Patient Studies Case studies:the effect of the damage on cognition is observed in a single patient. Group studies:the ...
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mod3.2
Idaho, PSYC 101
Excerpt: ... Psyc 100 Introduction to Psychology Structure of Nervous System Fig. 3.10 Chapter 3: Biological Processes Module 3.2: Organization of the Nervous System; Part 1 Central Brain and spinal cord Peripheral Somatic (cranial & spinal nerves) Autonomic Psychology 100 Introduction to Psychology Listen to the audio lecture while viewing these slides 1 Sympathetic Prepares body for emergencies (arousing; fright-flightfight response) Parasympathetic Calms the body down (restorative) 2 Psyc 100 Introduction to Psychology Psyc 100 Introduction to Psychology Fig. 3.11 Techniques for Studying the Brain Brain lesions Electrical stimulation Electroencephalograph (EEG) Computerized tomography (CT) Positron emission tomography (PET) Magnetic resonance imaging (MRI) 3 4 Psyc 100 Introduction to Psychology Psyc 100 Introduction to Psychology Brain Structure Hindbrain Midbrain Forebrain Fig. 3.12 Hindbrain Main function: "Life support" Examples: Breathing, heart r ...
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L7-Neural Activity
SUNY Buffalo, PSY 343
Excerpt: ... Sensory Processes & Perception PSY 343 Fall Session 2007 - Lecture 7 Measuring Neural Activity Instructor: Sean Green Studying Perception Neural Activity Review - Neural Activity Neurons carry information through action potentials When an action potential travels across a neuron, charged particles move into and out of the cell through ion channels We can get some idea of which neurons are active in spreading information by measuring the physiological effects of action potentials Studying Perception Neural Activity Techniques for measuring brain activity Measuring electrical/magnetic activity Single-cell recording EEG (Electroencephalography) MEG (Magnetoencephalography) Voltage sensitive dye 2-DG (2-Deoxyglucose) PET ( Positron emission tomography ) fMRI Blood oxygenation level dependent (BOLD) Measuring metabolic activity Studying Perception Neural Activity Single-cell recording Done by positioning a microelectrode in a neuron When an action potential reac ...
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L03
Purdue, PSY 200
Excerpt: ... MRI Scans MRI Scans MRI provides a slice at a time Take multiple slices to build up full image Can identify anatomical differences between brains Alcoholic has larger ventricles and thinner corpus callosum Note comparing across brains is a bit tricky! Everyones brain is a bit different Nobel prize winning work! Purdue University Purdue University PSY 200: Intro. to Cognitive Psychology 2 Prof. Greg Francis 1/5/09 MRI Scans MRI Scans Non-invasive, no side effects Allows early detection of brain disease, tumors, Fantastic spatial resolution But it only shows structure no way to know what a brain area does 3-D maps Normal Ataxia: loss of motor control Purdue University Purdue University Positron Emission Tomography Positron Emission Tomography PET scans track concentrations of radioactivity higher radioactivity corresponds to higher blood flow In the brain, higher blood flow corresponds ...
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L03
Purdue, PSY 200
Excerpt: ... MRI Scans MRI Scans MRI provides a slice at a time Take multiple slices to build up full image Can identify anatomical differences between brains Alcoholic has larger ventricles and thinner corpus callosum Note comparing across brains is a bit tricky! Everyones brain is a bit different Nobel prize winning work! Purdue University Purdue University PSY 200: Intro. to Cognitive Psychology 2 Prof. Greg Francis 1/5/09 MRI Scans MRI Scans Non-invasive, no side effects Allows early detection of brain disease, tumors, Fantastic spatial resolution But it only shows structure no way to know what a brain area does 3-D maps Normal Ataxia: loss of motor control Purdue University Purdue University Positron Emission Tomography Positron Emission Tomography PET scans track concentrations of radioactivity higher radioactivity corresponds to higher blood flow In the brain, higher blood flow corresponds ...
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brainimaging
Berkeley, MCB 135
Excerpt: ... Neuroimaging studies of normal aging The effects of normal aging on cognition Neuroimaging as a scientific tool The physiological basis of cognitive changes in normal aging Attention Visuospatial skills Executive function Language Memory Working Memory is the ability to maintain and manipulate information over short periods of time necessary to guide behavior 4371506 -> 4371506 4371506 -> 6051734 MAINTAIN MAINTAIN and MANIPULATE Should I kick it? Where's the flag? Is this supposed to be fun? 1000 Mean Reaction Time (msec) 800 20s-30s 600 50s-60s 70s-80s 400 200 ALONE COUNTING DIGIT SPAN Task Condition STRUCTURAL FUNCTIONAL Magnetic Resonance Imaging Positron Emission Tomography Structural brain changes with aging changes in brain volume young old OTHER BRAIN REGIONS FRONTAL STRUCTURAL FUNCTIONAL Magnetic Resonance Imaging Positron Emission Tomography YOUNG OLD SPATIAL RESOLUTION Primary visual cortex (V1) Ocular dominance columns red = right ...
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Chapter 2 Terms
Wisconsin, PSY 101
Excerpt: ... nges in activity of the working human brain Independent variable- condition that's manipulated to examine its impact on the dep. variable Inferential statistics- procedures; to make judgments about whether diff exist b/t # sets Informed consent- process; ppl given full info on study, allows them to decide to participate Institutional review boards (IRBs)- groups of ppl; review proposed research to ensure it meets standards of science and provides for physical/emotional well-being of participants Magnetic resonance imaging (MRI)- method; imaging, produces high-quality images of brain Naturalistic observation- observers don't change/alter ongoing behavior Observational technique- careful/systematic assessment/coding of overt behavior Observer bias- systematic errors in observation due to an observer's expectations Operational definition- quantification of a variable that allows it to be measured Participant observation- study where researcher is actively involved in the situation Positron emission tomography (P ...
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L03b
UCSB, PSYCH 123
Excerpt: ... Psych 123 Cognitive Neuroscience Lecture 3: Cognitive Neuroscience Methods Scientists having fun Methods of Cognitive Neuroscience Patient Studies Neuroimaging Studies Positron Emission Tomography (PET) Functional Magnetic Resonance Imaging (fMRI) Electrophysiological Studies Single-cell recordings Event-Related Potential Recordings (ERP) Computational modeling Patient Studies Advantage: direct link between brain area and behavior. Disadvantage: extent of the damage; the cognitive process may be affected by damage that is located elsewhere. Neuroimaging Studies Studies of Blood Flow Neural activity Change in metabolism Blood flow Thought Neuroimaging Studies Positron Emission Tomography (PET) Neuroimaging Studies Advantages of fMRI over PET Higher spatial & temporal resolution Noninvasive, and procedure can be repeated Anatomical & functional scans can be collected together More flexible experimental designs Neuroimaging Studies Functional Magnetic Resonance Imaging (fMRI) Neuroimaging Stud ...
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Notes_Lecture2
UNC Charlotte, PSYCHOLOGY 3116-001
Excerpt: ... Human Cognitive processes Lecture 2 - Approaches to Cognition - continued COGNITIVE NEUROPSYCHOLOGY Cognitive Neuropsychology Concerned with the patterns of cognitive performance (intact and impaired) shown by brain-damaged patients Informs us about ...
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Lecture16_TomogPotlF
UCLA, ESS 1
Excerpt: ... Lecture 16 Earth Processes: Tomography and Potential Fields Seismic tomography uses earthquakes (or shots) to image lateral heterogeneity in the Earths interior. Tomography Positron emission tomography (PET scan) MRI (magnetic resonance imaging) CAT Scan (computerized axial tomography). A CT scanner directs a series of X-ray pulses through the body. Optical Tomography Ultrasonic Imaging Optical Tomography X-ray Image CAT Scan Tomography X-rays Image = path Absorption(x,y) dpath Want to find Absorption(x,y) Back Projection Tomography Smear the image back along the rays and repeat for millions of rotated positions. Then the true image will emerge , since it will have energy that adds constructively. Move along the axis and repeat for 3D. Theoretical Tomography The Radon transform is an integral transform whose inverse is used to reconstruct images from medical CT scans. 1 T = d ( path ) velocity ( x, y , z ) velocity ( x, y , z ) = Radon Transform(T , path ) Radon Transform {All ...
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polykannan
NYU, CHEM 10465
Excerpt: ... al palsy. Building on these key findings, we have designed and synthesized dendrimer-drug nanodevices, taking advantage of their rich surface functionality using appropriate linking chemistry. They can deliver and release the drug in the targeted tissue in a tailored manner. The nanodevices are characterized by NMR, MALDI-TOF, and HPLC. The cellular uptake mechanism is studied using flow cytometry, and confocal microscopy. In vivo imaging is performed using a combination of positron emission tomography (PET), MRI and immunohistochemistry. The nanodevices are evaluated in appropriate animal models. Two examples, relating to macular degeneration (retina rat model) and cerebral palsy (brainrabbit model) will be presented. The efficacy of the nanodevices is evaluated from the macroscopic, tissue, to the RNA levels. Our results suggest that these tailored nanodevices are 10-100 times more effective in vivo, compared to the free drug. This is despite the fact that they contain no targeting moieties and that the t ...
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Lecture_7
Cornell, PSYCH 1200
Excerpt: ... Psychology y ve iti gy gn olo Co ych Ps Psycholinguistics Linguistics cs nti ma Se al rm Fo log Cognitive Philosophy Neurobiology Cognitive Science of Mind Philosophy Neurobiology Ne ur Neuroscience Co AI, ic Ne mpu og Neural Networks, L ur ta al os tio and Comp. Ling. orm cie n al F nc Computer e op syc Science Fo Sy rm nt al ax ho Functional Localization in the Human Brain Lesion and Deactivation Studies (Brain Damage, Wada Test, Cooling Coils, TMS) Direct Cortical Stimulation (also recording) Event-Related Potentials (ERPs) Positron Emission Tomography (PET Scan) functional Magnetic Resonance Imaging(fMRI) Positron Emission Tomography (PET Scan) Functional Localization in the Human Brain Lesion and Deactivation Studies (Brain Damage, Wada Test, Cooling Coils, TMS) Direct Cortical Stimulation (also recording) Event-Related Potentials (ERPs) Positron Emission Tomography (PET Scan) functional Magnetic Resonance Imaging(fMRI) fMRI Bro ...
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Class 07 Brain Imaging
Stony Brook University, BIO 208
Excerpt: ... calize criminality in the brain have not been successful. From Penfield's electrical stimulation of the brain surface to map the sensory motor areas of the brain. More modern techniques to study localized brain activity and function Medical Imaging Techniques CAT X-Ray MRI X-Ray Anatomy CAT MRI Types of Tomographs Anatomy Computed Tomography (CT) Computed Axial Tomography (CAT) Magnetic Resonance Imaging (MRI) Molecule distributions Positron Emission Tomography (PET) Single Photon Emission Computed Tomography (SPECT) Magnetic Resonance Imaging (MRI) Functional Magnetic Resonance Imaging (fMRI) Computed Axial Tomography Cross-sectional images of the local X-ray attenuation in an object are reconstructed from line integrals of attenuation ("projection data") using a computer Better for calcified tissues (denser than surrounding tissue) 1979: Hounsfield and Cormack share Nobel Prize. What is PET? PET stands for Positron Emission Tomography PET images a wide variety of processes o ...
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NS430_slides_L23
Washington State, NEURO 430
Excerpt: ... Neuro 430 Spring 2003 Lecture #23 Brain Imaging "A Picture Is Worth A Thousand Words" Imaging Methods Computed Tomography (CT) X-Ray Transmission Positron Emission Tomography (PET) Radionucleotide Localization Magnetoencephalography (MEG) Induced Magnetic Field Mapping Electroencephalography (EEG) Induced Electric Field Mapping Magnetic Resonance Imaging (MRI) and (fMRI) Blood Oxygenation Level Dependent (BOLD) Signal Scattered Light Imaging Computed Tomography (CT) UsesXrays SimplyShootXraysThroughthe TissueandLookforAbsorbanceand Transmittance. ForGrossAnatomicalStructureOnly NoFunctionalInformation Positron Emission Tomography (PET) AtRest VisualStimulation UsesInjectedRadioactiveTracers,CoincidenceLocalization ShowsMetabolicDemandorConcentrationofBoundLigand MEG and EEG Mapping ScalpRecordingTraces ElectrodePositionMap MEG and EEG Source Localization AnActivated ...
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Lecture 2_Concepts, Methods and approaches
UCSB, PSYCH 108
Excerpt: ... al processor (manipulates information; finite capacity) Mental operations (information processing) Parallel distributed processing (Neural networks; Connectionist models) Large set of simple units (interconnected nodes; neuron-like) Nodes represent symbols Processed by statistical properties, not by application of rules Comparing IP and PDP Information processing Serial Modular High level account High level processes (e.g., reasoning) PDP (neural networks) Simultaneous Spreading activation Low-level account Low-level processes (e.g., vision) Cognitive Neuroscience Combines cognitive psychology research with ways to assess the structure and function of the brain Brain lesions Positron emission tomography Functional magnetic resonance imaging Event-related potentials Brain Lesions Phineas Gage Evaluate the cognitive functioning of people who have experienced: stroke tumors accidents Limitation: hard to interpret Cognitive Neuroscience Methodologies Positro ...
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lecture6
East Los Angeles College, C 1087
Excerpt: ... NEUROSCIENCE AND BEHAVIOUR-LECTURE NOTES 1. LECTURE 6: HIGHER FUNCTIONS OF THE HUMAN BRAIN How can we study the localization of function in the human brain? Data traditionally comes from behavioural observations following lesions caused by strokes and war-time injury (often non-localized) and clinical lesions to improve conditions like epilepsy (eg split-brain patients). Modern non-invasive techniques like PET ( positron emission tomography ) and MRI (magnetic resonance imaging) scanning can be used to localize function in specific brain areas. The cerebral cortex is a double-structure which is bilaterally symmetrical in its main features. Left and right sides are connected by a large commissure, the corpus callosum (cut in split brain patients). Certain functions, motor and sensory, have clear areas of localization, with equivalent areas in both cerebral hemispheres (see A). The motor cortex controls the opposite side of the body in the control of body movement. Other areas (frontal, parietal and temporal lobe ...
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BIOM 5200_outline_W09
ECCD, BIOM 5200
Excerpt: ... BIOM5200/BMG5200 Biomedical Image Processing Course Outline (Winter 2009) Calendar Description Mathematical models of image formation based on the image modality and tissue properties. Linear models of image degradation and reconstruction. Inverse problems and regularization for image reconstruction. Image formation in radiology, computed tomography, magnetic resonance imaging, nuclear medicine, ultrasound, positron emission tomography , electrical impedance tomography. Note: The objective of the course is to learn how to process signals to obtain medical images for each modality (based on its physics, mathematical modeling and instrumentation) but not digital signal processing (DSP) of medical imaging. Prerequisites OCIECE and OCIBME graduate students. Course Textbook Medical Imaging Signals and Systems, by J.L. Prince and J.M. Links, Pearson Prentice Hall, 2006 Course Instructor Yuu Ono, Room 4448ME, 613-520-2600 (ext.8787), yuuono@sce.carleton.ca Web Site Course materials will be p ...
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study_guide1
UCSD, COGS 101
Excerpt: ... Stimuli Magnitude estimation Visual search Selective adaptation Selective rearing Sensory deprivation Gaze tracking Imitation Visual cliff Binocular rivalry Physiological Methods You should know how to implement these methods (at a very general level), what they measure, what level of brain activity (e.g., streams, maps, columns, single cells) they are useful for studying, how they compare to alternative methods, and how to apply them to novel situations: Single cell recording Receptive field mapping Optical imaging Positron emission tomography (PET) Functional magnetic resonance imaging (fMRI) Transcranial magnetic stimulation (TMS) Lesioning (ablation) Computational modeling Sample Short Answer Questions 1. ...
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