Outline for Physiological Psychology
1) Introduction to Physiological Psychology
a) Mind Body Relationship
b) The Brain and Consciousness
c) Descartes and his Pineal
d) Genetics and Behavior
e) Evolution and Psychology
f) Development of the brain as methods of studying psychology
g) Debates and ethical questions raised in this class
2) The basic elements of Physiological psychology
a) The basic animal cell
i) Membrane
ii) Cytoplasm
iii) Organelles
iv) Nucleus
v) DNA
vi) Cytoskeleton
b) Neurons
i) Cell body (soma)
ii) Dendrites
iii) Dendritic spines
iv) Axon hillock
v) Axon
vi) Axon terminus (terminal button) (End Bulb)
c) Glia
i) Types
(1) Micro Glia
(2) Astrocyte
(3) Schwann Cells
(4) Oligodendrocytes
(5) Radial Glia
ii) Functions
(1) Clean and destroy
(2) Growth and migration
(3) Feed and insulate
(4) Grow tumors
iii) Blood brain barrier cells
(1) Passive transport
(2) Active transport!
3) Chemical processes within the Neuron
a) Resting Potential
i) Pores
ii) Gates
iii) Pumps
b) Chemical gradient
c) Electrostatic Gradient
d) Action Potential
i) Na+ gates
ii) Threshold
iii) Depolarization
iv) Voltage dependant gates
v) Repolarization
vi) Hyperpolarization
vii) Summation
(1) Spatial
viii) Time
e) Transmission within the Neuron
i) Myelin and Saltatory conduction
ii) Other methods of communication
4) Communication between Neurons and the Body
a) Synapse
i) Presynaptic terminal
ii) Vesicles
iii) Ca++
b) Neurotransmitters
i) Amino Acids
(1) GABA
(2) Glycine
(3) Glutamate
ii) Acetylcholine
iii) Biogenic Amines
(1) Dopamine
(2) Norepinephrine
(3) Epinephrine
(4) Serotonin
(5) Histamine
iv) Peptides
v) Purines
vi) Gasses
c) Synaptic membranes
i) Receptors (ligand activated channels)
ii) Ion channels
iii) Receptor Types
(1) Metabotropic effects
(2) Ionotrophic effects
(3) Second messengers effect
iv) Post synaptic actions
(1) Spontaneous Firing rate
(2) IPSP
(3) EPSP
(a) Spatial summation
(b) Temporal Summation
(4) Enzymatic digestion
(5) Reuptake
d) Drug interactions in the Synapse
i) At the receptor
(1) Affinity
(2) Efficacy
(3) Agonists
(4) Antagonists
(5) Receptor blocker
(6) Receptor facilitator
(a) Competitive
(b) Noncompetitive
ii) At the pre-synaptic cell
(1) Reuptake inhibitor
(2) Stimulation of release of transmitter
(3) Enzyme blocker
e) Types of drugs
i) Stimulants
(1) Amphetamines and Cocaine
(2) MDMA
(3) Nicotine
(4) Caffeine
ii) Opiate Drugs
(1) Opium
(2) Morphine
(3) Demerol
(4) Oxycontin
(5) Heroin
f) Alcohol
g) Marijuana
h) Hallucinogenic
(1) LSD
(2) Mushrooms
(3) Mescal
(4) Peyote
(5) PCP
(6) Banana Peals
i) Addictive qualities of drugs (and people)
(1) DA receptors
(2) Modulation of DA in the brain
(3) Nucleus accumbens
5) General Anatomy –
a) Central Nervous system
b) Peripheral
i) somatic
ii) autonomic
(1) Sympathetic NS – run away
(2) Parasympathetic NS – sit and relax
c) Locations and directions
i) dorsal - ventral
ii) lateral - medial
iii) anterior - posterior
iv) superior - inferior
v) proximal - distal
vi) ipsilateral - contralateral
vii) Coronal
viii) Sagittal
ix) Horizontal
d) Spinal Cord
i) Dorsal root – sensations (epidural)
ii) Ventral Root – motor
iii) White matter – connections
iv) Gray matter – thinking function
e) The Hindbrain
i) Medulla and cranial nerves
ii) Pons (more cranial nerves)
iii) Reticular Formation
iv) Raphe system
v) Cerebellum
f) The Midbrain
i) Tectum
(1) Superior colliculus
(2) Inferior colliculus
ii) Tegmentum
(1) III and IV cranial nerve (balance and movement)
iii) Reticular formation head
iv) Substantia Nigra
g) The Forebrain
Limbic system is made from: Olfactory Bulb, hypothalamus, hippocampus, amygdala & cingulate gyrus
i) Olfactory Bulb
ii) Thalamus – in the center
iii) Hypothalamus – below the center
iv) Pituitary Gland
v) Basal Ganglia - Caudate and Putamen
vi) Basal Forebrain –pay attention! Nucleus basalis (acth)
vii) Hippocampus
viii) Fornix
ix) Corpus Callosum and Anterior commissures
x) Cortex – layers, columns and sulci and gyri
(1) Precentral Gyrus, Central Sulcus
(2) Postcentral Sulcus, Central fissure, Lateral sulcus
(3) Frontal Lobe
(a) Motor area
(b) Prefrontal cortex
(c) Broca’s area
(4) Parietal Lobe
(a) Somatosensory area
(b) Visual perception areas
(5) Occipital Lobe
(a) Primary visual cortex
xi) Temporal Lobe
(a) Oh so many parts…
h) Ventricles
i) Central Canal
ii) Lateral Ventricles
iii) Third Ventricle
iv) Fourth Ventricle
i) Integration of the parts.
6) Genetics
a) Blastocyst
i) Neural Plate
(1) Neural Ridge
(a) Neural Groove
(i) Neural Tube
(2) Proliferation
(3) Migration
(4) Differentiation
(5) Myelination
(6) Synaptogenesis
b) Brain Growth Spurt
i) Neurotrophin
ii) Apoptosis
c) Radial Glia
d) Growth cones
i) Chemical gradients
(1) Stem Cells
(2) Interneurons
e) Specific Growth areas!
i) FAS
ii) The Face
iii) Hypertoxicity
f) Strokes
g) Recovery
7) Vision Chapter 6
a) The eye –coding material
i) fovea
ii) Retina
iii) Rods
iv) Cones
v) Optic nerve
b) The Ganglia
i) Horizontal cells
ii) Bipolar cells
iii) Amacrine cells
iv) Ganglion Cells
(1) Receptive fields
c) The Brain
i) Lateral Geniculate nucleus of the Thalamus
(1) Magnocellular Neurons
(2) Parvocellular Neurons
(3) Koniocellular Neurons
ii) Cerebral Cortex
(1) Primary Visual Cortex and Secondary Visual Cortex
(a) Simple cells
(b) Complex cells
(c) Hypercomplex cells
(d) Feature Detectors
(2) Ventral stream – What
(3) dorsal stream – Where
(4) Complex Visual Tasks
(a) Color vision
(b) Shape
(c) Motion
(5) Blindsight
(a) Visual Neglect
8) Senses
i) Ears
(1) Hair cells
(a) Cochlear nucleus
(b) Inferior colliculus
(c) Medial geniculate of thalamus
(d) Auditory cortex
(2) Balance
(a) Hair cells
(b) Cerebellum
ii) Skin
(1) Specialized Neurons
(2) Free nerve endings
(3) Hair follicle receptors
(4) Meissner's corpuscles
(5) Pacinian corpusles
(6) Merkel disks
(7) Ruffini endings
(8) Krause End Bulbs
(9) Spinal input
(a) Transmitters
(b) Periaqueductal Grey Matter
iii) Taste
(1) Specific receptors
(2) Papillae
(3) Different actions for each flavor
(4) Somatosensory cortex
(5) Insula cortex
(6) Medulla Nucleus of the tractus solitarius
iv) Smell
(1) We do not know...
(2) Open dendrites
(3) Olfactory Bulb
(4) Anosmia
(5) Pheromones?
9) Movement
a) Muscles
i) Smooth
ii) Cardiac
iii) Skeletal
(1) NMJ
(2) ACTH
(3) Flexor-extensor
(4) Fast twitch –slow twitch
(5) Aerobic – anaerobic
(6) Proprioceptor
(7) Golgi Tendon organ
(8) Reflex arc
iv) Motor program
(a) Primary Motor Cortex
(i) Mirror Neurons – inferior parietal cortex (watching)
(b) Dorsolateral tract – red nucleus = hands fingers and toes
(i) Motor Cortex – red, pyramids of medulla, spine and out…
(c) Ventromedial tract – Vestibular nucleus = neck, trunk, legs
(i) Motor Cortex, caudate basal ganglia, cerebellum, reticular formation, spine…
(d) Posterior Parietal Cortex – Visual integration of movement (pay attention in “football”)
(e) Prefrontal cortex - predicts when you are going to need to move
(f) Premotor cortex - starts the body in the motion (weight shift)
(g) Supplementary motor cortex - (intentions - sequence)
(h) Cerebellum – movement, motor programs, attention
(i) Geometrical pattern of cells across the surface of the cerebellum
(ii) Purkinje – like a fan –timing of a movement…
(iii)Parallel fibers run across
(iv)The more purkinje cells activated the longer the inhibition of the nuclei of cerebellum
(i) Basal Ganglia
(i) Caudate nucleus -input
(ii) Putamen – input
(iii)Globus Pallidus – GABA –high spontaneous firing rate inhibition of movements
10)Biological Rhythms
a) Endogenous Cycles
i) Circannual Rhythms
ii) Circadian Rhythms
(1) Free running systems
(2) Zeitgeber
(3) Temperature graph…
(a) Length of human rhythms
(b) Resetting rhythms
(c) Jet lag
(d) Shift shifting
(4) Brain Parts involved
(a) Suprachiasmatic nucleus (even removed)
(b) Increase production of chemicals in light
(c) Retinohypothalamic pathway
(d) Blood born mechanisms
(e) Vitamin D?
(f) Pineal Gland
(i) Melatonin
(ii) 5-HT
b) Sleeping
i) Electroencephalographic data
ii) Non-rem
(1) Alpha waves
(2) Sleep spindle
(3) K-complex
(4) Slow-wave sleep
iii) REM sleep
(1) Paradoxical Sleep
(2) Wild dreams –loose consciousness
(a) Wake people up during a dream
(b) Increase the level of connections
iv) Brain Parts
(1) Awake
(a) Reticular formation (formally reticular activating system)
(i) Pons-to-mesencephalon – relay activity to rest of cortex
(ii) Locus coeruleus – attention focus from pons
(b) Basal Forebrain – learning and attention
(c) Hypothalamus – histamines
(2) Asleep
(a) Reduce stimulation
(b) Adenosine – inhibitory in basal Forebrain
(c) Prostaglandins
(i) inhibitory hypothalamic cells
(ii) increase gaba cells
(d) Dorsal Raphe and Pons
(3) REM sleep activity
(a) Pons-Geniculate-occipital
(i) Increase activity during REM
(ii) Deprivation increase activity other times
(iii)Awake??
v) Why bother sleeping?
(1) Repair and replenish
(2) Sleeping more each night uses less energy
(3) Hibernation
(4) Amount of sleep
(a) Depends on you
(b) Sleep Debt
(5) REM causes body paralysis – which part of the brain would be activated
11)WELCOME TO THE HYPOTHALAMUS The feeding freezing fluid finding fornication formation.
a) Temperature regulation
i) Behavior
(1) A large pile of baby Rats
(2) Fluffy cold cat
(3) Moose in the pool
(4) Penguin pile
(5) Put some damn clothes on
ii) Brain areas
(1) Preoptic area
(a) It has it’s internal temperature mechanisms
(b) Measures information from spine and skin
iii) Prostaglandin E1 and E2
(1) increase production during illness
(2) increase greater than 4 degrees can be dangerous.
b) Fluid balance
i) Welcome to the Kidney
(1) Loops and things…
(2) Vasopressin
(3) ADH
ii) Osmotic Thirst
(1) OVLT –sensory organ outside BBB
(2) Supraoptic nucleus - Vasopressin release
(3) Paraventricular nucleus - fluid balance release
(4) Lateral Preoptic area – behavior of drinking
iii) Hypovolemic thirst
(1) Baroreceptors
(2) Angiotensin II
(a) increase blood pressure based on volume
(b) the sum is greater than the parts
(3) Subfornical Organ (SFO) - sensory organ outside BBB
c) Hunger –
i) Your enteric system
(1) Mouth
(2) Esophagus
(3) Stomach
(4) Duodenum
(5) Liver – pancreas
(6) Small intestine
(7) Large intestine
ii) Conditioned taste aversions
(1) Primal influences
(2) Rapid learning
iii) Ok now I am hungry what can I do?
(1) Body parts role in hunger satiation.
(a) Oral factors
(b) Stomach and intestinal factors
(i) Vagus nerves
(ii) Splanchnic Nerves
(iii)Duodenum
(iv)Cholecystokinin
(c) Glucose
(i) Insulin
(ii) Glucagon
(iii)Glycogen
(2) Brain parts role in hunger
(a) Lateral Hypothalamus
(i) Controls feeding
(ii) DA release
(b) Nucleus accumbens – motor actions of food
(c) Prefrontal cortex
(d) NTS tastes to cortex (area of somatosensory tract)
(3) Brain parts involved in satiation
(a) Hypothalamus
(i) Dopamine
(ii) Paraventricular Nucleus (PVN) – measures fullness
(b) Norepinephrine
(i) Satiation of hunger with high levels
(ii) Amygdala
(iii)Olfactory Bulb
(iv)Cortex
(v) Thalamus
(c) Hormones
(i) Leptin – are you full of fat?
(ii) Neuropeptide Y inhibits PVN
(d) Weight loss mechanisms
(i) Muscle reaction to food intake
(ii) Behavior
(iii)Food for reinforcement
12)Emotions
a) What is the Function of emotions?
i) Various emotions have various functions...
(1) Happiness
(2) Anger, Fear
(3) Sadness
(4) Love
(5) Stress -
b) What is the Function of, how to measure, and how do you to describe them?
i) Kizmet robot and emotional responses -
c) Emotional behavior = experience + interpretation of situation
d) Behavior without consciousness –
i) walking in sleep
ii) night terrors
iii) absence seizures
e) The border form the brain stem to the cortex is called the limbic system...
i) Amygdala
ii) Hypothalamus
iii) Hippocampus
iv) Caudate
v) Thalamus
vi) Fornix
vii) Brain damage can stop memory formation, but can also increase memory retention of emotional content: more later with memory!
viii) Prefrontal Cortex Damage - lack of social learning and moral development
f) James Lange theory:
g) Facial feedback theory
13) Stress
h) How can stress be good???
i) Increase peripheral awareness
ii) Increased muscle strength, and increased Endurance
iii) Decreased pain reception and bleeding
iv) Increase concentration
v) Increase blood flow to important organs
vi) Decreased need for food, and lower hunger
i) When can this be bad?
i) Increased blood flow to the eyes, can damage fine detail image recognition
ii) Increase likelihood of muscle cramping, and tendon issues
iii) Increase skin irritation, and skin lesions.
iv) Increased likelihood of depression, and depletion of neurotransmitters.
v) High blood pressure, heart disease, strokes, aneurysms.
vi) Low body weight, anorexia, ulcers, colitis, IBS
vii) Hypothalamus - Pituitary - Adrenal Cortex
13)MEMORY FUNCTION!
a) A function of one part of the brain
b) A function of many parts of the brain together (equipotentiality and mass action)
c) A function of many parts of the brain independently (The memory Engram)
d) A function of many parts of the brain in parallel, both independently and together.
i) Short term memory
ii) Long term memory
(1) Consolidation
(2) Storage for retrieval.
(3) Associations.
iii) Cerebellum – (LIP) lateral interpositus nucleus.
iv) Hippocampus
(1) Memory tasks-
(a) radial arm maze
(b) delayed response task
(c) Morris water maze
v) HM
e) What are memories?
i) Declarative – describe in words “I remember when”
ii) Explicit memories – remember this fact
iii) Procedural – development of motor skills
iv) Implicit memories – memories the become a part of your life (do like that nurse)
v) Temporal lobe and declarative memories
vi) Think about the hippocampus and the areas of the visual systems stored in the temporal Lobe
f) How are memories formed?
i) Classical conditioning in a sea slug
ii) Long term Potentiation
(1) Specificity- highly active cells increase potential for firing
(2) Cooperativity – more than one cell firing on the target cell produces LTP
(3) Associativity – classical conditioning, increasing memory for associations
iii) Long term Depression – long disuse, or getting used to a stimulus, (wearing glasses)
(1) How it works!
(a) AMPA – excitatory receptor for Glutamate
(b) NMDA (n-methyl d-aspartate)
(c) Pre-synaptic cell releases Glutamate
(d) AMPA receptor lets Na+ into the Cell.
(e) If enough Na+ enters the post synaptic cell fires
(f) (see section ii above)
(g) NMDA is closed by a cork of Mg++ and is normally closed.
(h) NMDA becomes active lots of things can happen
(i) NA+ enters the cell
(ii) Ca++ enters the cell
(iii)C-AMP activate G-protein things happen
1. retrograde transmitters
2. up regulation
3. increase production of transmitters
4. decreased membrane threshold
(2) Why it works….Look back at amnesia and specific areas of the brain…
iv) Lateralization of brain function…
14)Huh I guess I am not going to have time to finish this…
15)here are some disorders…
|
Disorder |
Possible Cause |
Brain Parts Involved |
Treatment |
|
Obesity |
Genetic Influences Behavioral control Insulin production |
Ventral Medial Hypothalamus Hormones |
Behavioral Treatment, hormonal treatment, surgery |
|
Anorexia nervosa |
Genetic influences
|
5-HT and opiates |
Behavioral treatment Antidepressants THC |
|
Bulimia nervosa |
Genetics influences Lateral hypothalamus |
5-HT and NE |
Behavioral treatment Meds |
|
Korsakoff’s |
Alcohol Consumption lack of Thiamine |
|
|
|
Anterograde amnesia |
Brain Damage |
Perirhinal cortex Parahippocampal cortex |
Depending on cause.. |
|
Retrograde amnesia |
Disease, Damage, Psychological |
Hippocampus Cortex damage |
Therapy, retraining ACH increases |
|
Tumors |
Various Items |
Various areas |
Surgery Radiation Got insurance? |
|
Partial seizures |
Old Injury, Genetics, Trauma, drug or fever |
Area of the brain effected… focus of seizure |
Drugs/ surgery |
|
Generalized Seizures |
Old Injury, Genetics, Trauma, drug or fever |
Difficult to determine |
Drugs/ surgery |
|
Grand mal |
Old Injury, Genetics, Trauma, drug or fever |
Difficult to determine |
Drugs/ surgery |
|
Strokes |
Hemorrhage, obstruction |
Depending on the damage |
Clot-busters, rehabilitations, return to activity. |
|
FAS |
Prenatal Drinking |
Most of the brain |
Stimulation in environment. |
|
Down syndrome |
Extra chromosome |
Host of brain functions, lobes |
Behavioral modification |
|
Parkinsons’s disease |
Toxins – genetics - |
Degeneration of nigrostriatal system |
l-DOPA fetal tissue Globus Pallidus removal |
|
Huntington’s disease |
Genetic – longer glutamate molecule |
Caudate nucleus, Putamen, |
Choose you parents better. |
|
Alzheimer’s disease |
Genetic – plaques and tangles |
Hippocampus – memory cortex |
Prevention – stimulation immune suppressant drugs |
|
Encephalitis |
Brain infection - Aids Dementia |
Various parts |
Antibiotics – CA blockers |
|
Schizophrenia |
Genetic environmental influences –colds flues stress… |
DA systems –nucleus accumbens and Amygdala |
DA Blocking Medication |
|
Depression |
Genetics –diet – stress hypersomnia |
Monoamine hyp. 5-HIAA Prefrontal cortex |
MAO SSRI NERI ECT sleep dep. |
|
Bipolar disorder |
Genetics –diet – stress |
Monoamine hyp. 5-HIAA Prefrontal cortex |
Lithium – Tegretol |
|
SAD |
Genetic – hormonal |
Suprachiasmatic nucleus |
Phototherapy |
|
Panic Disorder |
Genetic – hormones caffeine, CO2 |
Amygdala, sympathetic nervous response |
GABA , benzodiazepines |
|
Phobias |
Learning – genetics hormones and others |
Amygdala, sympathetic nervous response |
GABA , benzodiazepines Behavioral treatment |
|
OCD |
Anxiety – genetics |
Basal Ganglia and prefrontal cortex |
SSRI and Benzodiazepines Clomipramine |
|
Autistic disorder |
Genetics PKU, OCD Tourette’s Prenatal causes |
Corpus collosum, cerebellum, various brain areas |
Behavioral mod, Diet, ?? |
|
PTSD |
Trauma, personality,
|
Hippocampus, Amygdala |
Anti-anxiety drugs, behavioral therapy |