Intro to Psych Week three Note Bundle
Intro to Psych Week three Note Bundle 1004
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This 8 page Class Notes was uploaded by Margaret Vaughan on Friday September 16, 2016. The Class Notes belongs to 1004 at Virginia Polytechnic Institute and State University taught by Benjamin DeVore in Fall 2016. Since its upload, it has received 20 views. For similar materials see Introduction to Psychology in Psychlogy at Virginia Polytechnic Institute and State University.
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Date Created: 09/16/16
Intro to Psychology 1004 Week 3 Lecture Notes Dr. Harrison LOBES REAL TIME IMAGING 1. PET 2. fMRI Broca area composing speech (These will be on Test) wernickes comprehending speech Left brain: 1. language: speech reading writing 2. serial processing 3. social approach 4. positive emotion 5. parasympathetic 1. Lowers BP 2. Heart rate Right Brain: 1. Spatial: Faces places prosody 2. Parallel processing 3. social avoidance 4. negative emotion 5. sympathetic tone 1. increases in blood pressure, heart rate, glucose Who would be better at detecting lying: The one with damage to the left brain, the right brain can spot a lie COMMON REACTIONS TO STROKE Left sided stroke: 1. Catastrophic Reaction 2. Aware of Problems with self 3. “i have problems” RightSided stroke: 1. Indifference 2. Unaware of Problems with self 3. “others are the problem” CROSSED CONTROL Left brain controls right side the body keeping track of body parts Right brain controls left side The world THE FRONTAL LOBES EXECUTIVE FUNCTIONS 1. Organizing 2. planning 3. sequencing 4. regulatory control 5. every bodily reflex LEFT FRONT 1. speech output 1. fluent 2. stuttering RIGHT FRONT 1. emotional output 1. labile 2. anger 3. sad 4. fear BACK OF THE BRAIN (P.O.T LOBES) RECEPTION AND COMPREHENSION 1. All sensory modalities 1. Vision 2. Audition 3. Taste 4. Body sensation Left: 1. Language comprehension “word salad speech” Right: 1. Emotional comprehension 1. Anger 2. sadness 3. fear TOPOGRAPHICAL ARRANGEMENT 1. logical arrangement 1. PROJECTION AREAS “cables” from sensors and to muscles Vision Audition Body sensation Motor control or “strength" Homunculus Strokes: More of Less Activation 1. Less activation 1. Impaired: strength body senses vision hearing More Activation See, hear, feel, things that aren’t there THE CORPUS CALLOSUM (IMPORTANT) THE ALIENARM SYNDROME “butterfly tumor” Split brain EXAMPLES OF TWO DIFFERENT BRAINS INCONGRUENT LOGICAL AND PROSODIC SPEECH left brain word right brain picture THE FRONTAL LOBES 1. personality attributes 1. Emotional expression Left= positive right = negative eg, “press secretary brady” 2. Perseveration or inertia Left= speech Right= spatial eg lawn mowing eg drawing a flower Rules and regulations Right= social pragmatics Social anarchy Left= Logic Abstract reasoning Motor control Strength, dexterity Expressed speech Distractibility eg. Eye movements INTRO TO PHYSCOLOGY 1004 SENSATIONS GENERAL PROPERTIES OF THE SENSES 3. Transduction: process of converting one type of energy into another form of energy. 4. Occurs at the receptor 5. Receptor converts physical energy into neural energy SENSORY RECEPTORS ARE TRANSDUCERS 1. Limited bandwidth or capacity 6. Audition 1. Headphones 7. Olfaction 1. Formaldehyde or Lysol ADAPTATION OCCURS AT THE RECEPTOR LEVEL THRESHOLD 6. ABSOLUTE THRESHOLD: 1 The minimum physical energy necessary to activate a given sensory system 50% of the time. 1 Affected by deprivation, hormones, others 2 7. DIFFERENCE THRESHOLD 1 Difference between 2 stimuli required to distinguish one from the other TO COMPUTE AN ABSOLUTE THRESHOLD USE THE METHOD OF LIMITS 4. ascending VS 5. descending VISION 4. Stimulus::::::: Electromagnetic Wavelength 5. Human Range::::: 380 nm (violet) to 760 nm (red) ANATOMY OF THE EYE LAYERS 6. Sclera 7. Choroid 8. Retina layer ciliary bodies are critical for accommodation: pulling or stretching zonula or lens for near vision. AUTONOMIC NERVOUS SYSTEM AND THE EYE 2. lens and iris controlled by A.N.S. afferents from cranial nerves and circulation 1. PARASYMPATHENTIIC 1 pupillary constriction 2. SYMPATHETIC 1 pupillary dilatation 3. 3RD NERVE (OCULOMOTOR) 1 3rd nerve palsy= pupil dilation 4. CILIOSPINAL REFLEX OF BUDGE 1 public dilate to pain from anywhere Humans have a duplex retina 2. Cone receptors 1 Photopic vision!!!! REGULAR LIGHT 3. Rod receptor 1 Scotopic vision!!!!! DIM LIGHT INVERTED RETINA A . CONES and RODS —— RECEPTORS 1. bipolar cells 2. ganglion cells ^ 3. blood vessels | 4. lens (order of reception) | 5. cornea | 6. light source | PITUITARY TUMOR CAUSES GIGANTISM—TUNNEL VISION EACH EYE HAS TWO RETINAS—ONE FOR EACH BRAIN GUSTATION OR TASTE 2. Taste receptor locations 3. change with development 4. early on: tongue, pharynx, larynx, cheek 1 bitter 2 salty 3 sweet 4 umami 5 sour 5. THRESHOLDS 1 Double about every 20 years 6. ADAPTATION 1 Aftertaste 7. ELECTRICAL STIMULATION 1 Elicits taste THAT’S WHY LITTLE KIDS LOVE CANDY BUT CAN’T STAND BITTER FLAVORS. Week three recitation lesson--- Biopsychology Neurons: the mechanisms that bring sensory information to the brain. they receive, transmit, and process information. Dendrite - cell body- axon- axon terminals- release from terminal buttons. Action potential- electrical charge of the axon, changing depending on the message. Myelin Sheath- fatty coating around axon, makes it more efficient. Resting potential is at -70 millivolts (mV) outside positive inside negative ion channels are closed When soma receives message, action potential fires. Channels open. positive ions enter. excitatory- increased rate of firing inhibitory- decrease rate of firing KNOW NEUROTRANSMITTER AND MONOAMINE CHART
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