COURSE:                    PY454 Physiological Psychology

PROFESSOR:             Dr. Robert Dowman

OFFICE:                      173 Science Center

PHONE:                      268-3836

EMAIL:                       rdowman@clarkson.edu

TIME & PLACE:         Tues Thurs: 2:30-3:45 pm SC162

 

OFFICE HOURS: Mon and Wed 8:00-10:00 and/or by appointment.  If these times aren’t convenient call or email me to make an appointment at some other time.

 

TEXTBOOK:              J.W. Kalat, Biological Psychology, 8th Edition, 2004.

 

EVALUATION:

HOURLY 1 .................................... 21%

HOURLY 2 .................................... 22%

FINAL EXAM ............................... 22%

QUIZES ………………………….. 15%

PAPER ………............................... 20%

 

PAPER:

A. Topics and grading rubric. The paper will be 5 page report (1” margins, double spaced) discussing the neural mechanism of any psychological phenomenon. Acceptable topics include, but are not limited to Alzheimer’s disease, Parkinson's disease, aphasia, language, attention, aggression, mechanisms of psychoactive drugs, use of artificial neural networks to model psychological phenomena, sexual orientation. The paper will use at least 5 references from peer-reviewed journal articles. Web sites are not to be used as references (this does not include journals accessed on-line). The paper will be graded on the quality of the writing and on how well the information in the references are synthesized and applied to the topic. For example, a well written paper that merely lists summaries of the 5 articles will earn a grade of C. A well written paper that uses the information from the references to back up statements and/or conclusions will earn a grade of A.

 

B. Due dates: A statement of your topic and a list of 5 references related to the topic are due February 1 (worth 1/20 points). A detailed outline that describes the theme of each paragraph, the references that are going to be used to support the theme, and the order in which the themes are going to be presented is due Mar 1 (worth 4/20 points). The final paper is due April 14 (LATE PAPERS WILL NOT BE ACCEPTED). Topic statements, outlines, and the paper should be in word documents and submitted electronically to my email address on or before the due date.

 

C. Style.  The paper will have a title page (with your name, date, course, and title of the paper) and a reference section (the title and reference section are not included in the 5 page limit). Referencing theories and experiments of others will be according to American Psychological Association (APA) format.  That is, the authors and year of the study will be given in parentheses in the body of the paper and the authors, title of the work, title of the journal, year, volume and pages, or title of the book, publisher, and year if from a book, given in a reference section at the end of the term paper (see Kalat for examples, and http://www.vanguard.edu/faculty/ddegelman/index.aspx?doc_id=796 for details).

 


Class Schedule (tentative):

Week 1 (Jan 12-20):  Introduction. Reading: Introduction and Chpt 1, Kalat; Cells of the nervous system, action potential.  Reading: Chpt 2 Kalat.

 

Week 2 (Jan 23-27): Synaptic Transmission.  Reading: Chpt 3 Kalat

 

Week 3 (Jan 30-Feb 3):  Synaptic Transmission (cont). PAPER TOPIC STATEMENT DUE FEB 1

 

Week 4 (Feb 6-10): Non-Visual Sensory Systems. Reading: Pain Chpt 7 (pp. 197-205) Kalat. HOURLY 1 FEB 9 

 

Week 5 (Feb 13-17): Non-Visual Sensory systems (cont)  FEB BREAK FEB 13-14

 

Week 6 (Feb 20-24): Vision. Reading: Chpt 6 Kalat

 

Week 7 (Feb 27- Mar 3): Vision. (cont).   PAPER OUTLINE DUE MAR 1

 

Week 8 (Mar 6-10): Movement. Reading: Kalat Chpt 8.

 

*********************** SPRING BREAK MAR 13-17  *******************************

 

Week 9 (Mar 20-24):  Movement (cont)          HOURLY 2 MAR 23

 

Week 10 (Mar 27-31): Wakefulness and Sleep. Reading: Chpt 9 Kalat.

 

Week 11 (Apr 3-7): Sexual Behavior.  Reading: Chpt 11 Kalat

 

Week 12 (Apr 10-14):  Emotion.  Reading: Chpt 12 Kalat   PAPER DUE APR 14

 

Week 13 (Apr 17-21): Learning and Memory. Reading Chpt 13 Kalat.

 

Week 14 (Apr 24-28): Learning and Memory (Cont).

 

Week 15 (May 1-5):  Final Exams

 

 

 

LECTURE  OUTLINES:

INTRODUCTION:
Objective:  Introduce Physiological psychology and its approach to the mind/brain problem.  ReadingChpt 1 Kalat

Lecture Outline:

Physiological Psychology: Definition

Mind-Brain Problem
 *Materialist
 *Dualist
 *Identity
 *Emergent Property

Use of Animals in Brain Research: Ethical Issues

Learning Objectives:

*explain how the study of the brain can help our understanding of mind and behavior

*compare and contrast the 4 main approaches to the mind brain problem: dualist, materialist, identity, and emergent property.

*explain when it is and is not acceptable to use animals in brain research

 

CELLS OF THE NERVOUS SYSTEM
Reading:  Chapter 2 Kalat.

Lecture Outline:

Cell Types: Neurons and Glia

Cell Organelles

Nerve Cell Structure
 *Dendrites, soma, axon, axon terminals

Types of Neurons
 *sensory, interneuron, motoneuron

Glia

Neuron Metabolism

Nerve Impulse (Action Potential)
 *Resting Potential
 *Action Potential
 *Application: Action of Local/General Anesthetics
 *Propagation of the Action Potential: Role of Myelin
 *Application: Multiple Sclerosis

Learning Objectives

*identify and describe the function of the five main parts of a neuron: soma, dendrites, axon, axon hillock, and axon terminals

*compare and contrast the structure and function of oligodendrocytes and Schwann glial cells, including their roles in recovery of function after damage

*describe the main function of astrocytes

*explain how large molecules, such as glucose and amino acids, gain access to the brain

*explain why heroin has greater access to the brain than morphine

*describe the structure of the nerve cell membrane

*describe the nerve cell resting potential, and how it is developed and maintained

*explain how changes in the voltage-gated sodium and potassium channels gives rise to the action potential

*explain how the action potential is propagated down the axon

*explain how the absolute and relative refractory periods prevent the action potential from backfiring (traveling in both directions along the axon)

*explain how myelin affects the propagation of the action potential

*describe how local anesthetics work

*describe how general anesthetics work

*describe how multiple sclerosis affects the nervous system.

 

SYNAPTIC TRANSMISSION
 Reading:  Chapter 3, Kalat.

Lecture Outline:

Anatomy of the Synapse

Chemical Transmission: the release and binding of neurotransmitters

Post-Synaptic Effects
 *Ionotropic
 *Metabotropic
 *Neuromodulatory

Presynaptic Receptors

Inactivation and Reuptake of Neurotransmitters

Types of Neurotransmitters

Neuronal Decision Making Processes

Application: Site of action of psychoactive drugs
 

Learning objectives:

  • Describe Loewi’s experiment demonstrating that synaptic transmission at the neuromuscular junction is chemical and not electrical
  • Describe the sequence of events that begins with an action potential in the presynaptic terminal and ends with the release of neurotransmitter into the synaptic cleft.
  • Compare and contrast ionotrophic and metabotrophic receptor-ion channel interactions in the post-synaptic membrane.
  • Explain the role synaptic vesicles play in the quantal nature of post-synaptic potentials described by Fatt and Katz
  • Describe the factors that determine whether a neurotransmitter-receptor binding interaction results in an inhibitory postsynaptic potential or an excitatory postsynaptic potential
  • Compare and contrast neurotransmitters and neuromodulators
  • Explain how presynaptic receptors can influence the amount of neurotransmitter released by the presynaptic terminal
  • Compare and contrast the two main mechanisms that inactivate neurotransmitters once they have been released into the synaptic cleft (enzymatic degradation, reuptake)
  • Explain how acetylcholine can produce excitatory post-synaptic potentials at some synapses, and inhibitory post-synaptic potentials at other synapses.
  • Discuss possible explanations for how enkephalin, an endogenous opiate, can be involved in different functions (e.g., pain inhibition vs. euphoria)
  • Describe how the following drugs affect synaptic transmission (including the type of neurotransmitter affected): caffeine, cocaine, amphetamine, heroin, MAO inhibitors, serotonin-selective reuptake inhibitors.

 

NON-VISUAL SENSORY SYSTEMS: PAIN
ReadingChpt 7, pp. 197-205 Kalat.

Lecture Outline:

Importance of psychological factors in pain

 

Stimulus

 

Transduction

 

Pain Pathways

 

Response Properties of Neurons in the Pain Pathways

 

Psychological Factors in Pain: Evidence for Pain Inhibitory Mechanisms

 

Pain Inhibitory Processes


Learning Objectives:

  • Explain the importance of pain perception in survival and well being
  • Describe situations where it is best if a noxious stimulus produces pain, whereas in others it is best if the noxious stimulus does not produce pain
  • Describe the type of stimuli that activate the peripheral nociceptors.
  • Describe the functions of the 4 different types of peripheral afferents in a mixed nerve ( ,, , C) and compare with the 3 types in a sensory nerve
  • Describe where the peripheral nociceptors project into the spinal cord
  • Compare and contrast the 2 different types of nociceptive cells in the spinal cord (nociceptive specific and wide dynamic range)
  • Describe the brain areas and the sequence of connections of the 3 main nociceptive pathways: Spinothalamic, Spinoreticular, Spinomesencephalic
  • Explain why the early attempts at treating intractable pain by surgical resection of the spinothalamic tract often resulted in pain that was worse than before the surgery
  • Describe Melzack and Wall’s original Gate Control Theory of Pain
  • Describe the role of the periaqueductal gray matter in opiate analgesia
  • Using the known input and output connections of periaqueductal gray, explain how psychological factors can result in inhibition of the nociceptive pathways.
  • Describe how acupuncture works
  • Describe how physiological stress (e.g., activation of the fight or flight response) affects pain.

VISION
 ReadingChpt 6 Kalat.

Lecture Outline:

Stimulus

Eye
 -Light path, including accommodation
 -Retina
  *Photoreceptors, horizontal, bipolar, and ganglion cells
  *Transduction

Central Pathways

Brightness
 -Ganglion cell receptive fields
 -Principle of lateral inhibition

Color Vision
 -Young-Helmholtz theory
 -Opponent-Process theory
 -Physiology of color vision

Shape perception
 -Hubel and Wiesel and the responses of cortical neurons
 -principle of columnar organization

Separate Pathways for Different Functions
  -3 major vision subsystems: Shape; Color/Brightness; Movement/Distance
 -Anatomical separation of the different vision subsystems.

Learning objectives:

  • Describe the path light takes through the eye
  • Identify the structures in the eye responsible for focusing an image on the retina, including which have adjustable refraction and which have fixed refraction.
  • Describe what is meant by retinotopic organization
  • Describe how the rod receptors convert light into neural activity (transduction)
  • Describe where the rod and cone receptors are located in the retina
  • Explain why an image focused onto the “blind spot” of the retina does not result in a conscious visual experience
  • Describe the geniculostriate visual pathway and its main function
  • Describe the tectopulvinar visual pathway and its main function
  • Describe the suprachiasmatic visual pathway and its main function
  • Describe the receptive field of retinal ganglion cells
  • Explain how the retinal ganglion cell’s receptive field explains the Hermann Grid illusion.
  • Draw a wiring diagram between the retinal receptors and ganglion cells that accounts for the ganglion cell receptive field
  • Compare and contrast the Young-Helmholtz (Trichromatic) and Opponent-Process theories of color vision.
  • Describe at which level of retinal processing the Young-Helmholtz and Opponent-Process theories operate.
  • Compare and contrast the inputs and receptive field properties of the parvocellular and magnocellular cells in the lateral geniculate nucleus of the thalamus
  • Describe how retinal ganglion cells of the two eyes project onto the 6 lamina of the lateral geniculate nucleus.
  • Describe how the visual field is projected onto the primary visual cortex.
  • Compare and contrast the receptive fields of the simple and complex cells of the primary visual cortex
  • Describe the columnar organization of the primary visual cortex
  • Compare and contrast the response properties of cells in blob and inter-blob regions of the primary visual cortex
  • Describe where the lateral geniculate nucleus parvocellular and magnocellular cells project to in the primary visual cortex
  • Describe the visual cortical areas comprising the dorsal visual pathway
  • Describe the visual cortical areas comprising the ventral visual pathway
  • Describe the inputs to the dorsal and ventral visual pathways
  • Compare and contrast the functions of the dorsal and ventral visual pathways
  • Describe how the Binding Theory attempts to explain how information in separate anatomical locations in the visual cortices is combined into a single, unified visual perception

MOVEMENT
 Reading: Kalat, Chpt. 8.

Lecture Outline:

Muscle
 -movement about a joint
 -slow, fast and intermediate twitch

Spinal control of movement
 -stretch reflex
 -flexion-crossed extension reflex

Types of Movements
 -non-ballistic vs. ballistic
 -skilled vs. non-skilled

Supraspinal control of movement
-Motor cortices:

            Primary motor cortex

            Supplementary motor cortex

            Premotor cortex

 -basal ganglia
 

Learning Objectives:

  • Describe the reflex circuitry of the spinal stretch reflex (anatomy, inputs and outputs)
  • Describe the role of the muscle spindle in the spinal stretch reflex
  • Describe the functions of the intrafusal and extrafusal muscle fibers in the spinal stretch reflex
  • Describe the functions of the gamma and alpha motor neurons in the spinal stretch reflex
  • Explain how the spinal stretch reflex corrects for external perturbations of a limb
  • Explain how the spinal stretch reflex can be used to compare intended and actual movements
  • Describe the reflex circuitry of the spinal flexion crossed extension reflex (anatomy, inputs and outputs)
  • Explain the role of the spinal flexion crossed extension reflex in escaping and avoiding noxious stimuli
  • Explain how the spinal flexion crossed extension reflex is used in walking
  • Explain what role spinal reflexes play in voluntary movements
  • Describe the role of the central pattern generator in the scratch reflex
  • Identify the location of the central pattern generator responsible for the scratch reflex
  • Identify where the primary motor cortex is located
  • Describe the main inputs and outputs of the primary motor cortex
  • Describe the response properties of neurons in the primary motor cortex
  • Describe the function of the primary motor cortex in voluntary movement
  • Describe how small lesions of the primary motor cortex affect its organization
  • Identify where the supplementary motor area is located
  • Describe the main inputs and outputs of the supplementary motor area
  • Describe the main role of the supplementary motor area in voluntary movement
  • Identify where the basal ganglia are located
  • Describe the circuitry interconnecting the basal ganglia structures
  • Describe the main inputs and outputs of the basal ganglia
  • Describe the main role of the basal ganglia in voluntary movements
  • Use the circuitry of the basal ganglia to explain the symptoms of Parkinson’s disease
  • Use the circuitry of the basal ganglia to explain Huntington’s disease

SLEEP
ReadingChpt 9 Kalat.

Lecture Outline:

Sleep
 -Physiological changes with sleep (EEG, EOG, EMG)
 -Sleep stages
 -Why do we sleep
  *adaptive process
  *restorative process
  *function of REM sleep
 -Brain mechanisms of sleep and arousal.
  *Reticular formation and arousal
  *raphe system and sleep

Circadian Rhythms
 -Why do we wake/sleep in regular intervals
 -Sleep wake/cycle and other processes regulated by internal clock
 -The internal clock is the Suprachiamatic Nucleus (SCN)
 -SCN inputs, outputs
 -Other rhythms

Learning Objectives:

·        Describe the electrophysiological (EEG, EOG, EMG) characteristics that define the 4 stages of non-REM sleep

·        Describe the electrophysiological characteristics that define REM sleep

·        Describe the differences between the delta, theta, alpha and beta EEG frequency bands, and when they occur during the sleep wake cycle

·        Compare and contrast the Adaptive and Restorative theories of sleep

·        Explain the role of slow wave sleep in restoring brain function

·        Describe how brain temperature affects sleep

·        Describe the Activation-Synthesis Theory of REM sleep

·        Explain the role REM sleep plays in learning and memory

·        Identify the brain areas involved in arousal (waking) and sleep

·        Describe the role of the suprachiasmatic nucleus in the diurnal rhythm

 

SEX
 Reading:  Chapter 11 Kalat

Lecture Outline:

Introduction: female/male differences

Hormones and Behavior

Genetic differences

Hormonal differences
 -Estrogen and Androgen

Sex hormone actions:  Effects on physical structures and behavior
 -Organizational effects
 -Activational effects

Sexual orientation: What determines homo- vs. heterosexuality?

Learning Objectives:

  • Describe how the X and Y chromosomes direct the development of the gonads
  • Describe how the sex hormones direct the development of the reproductive organs and genitalia
  • Describe the mechanism whereby sex hormones affect neurons
  • Compare and contrast the organizational and activational effects of sex hormones
  • Identify the brain areas that are different between males and females
  • Describe how increasing or decreasing sex hormone levels affects reproductive behavior in males and females
  • Compare and contrast the effects of sex hormone levels on a female’s receptivity, proceptivity and attractivity.
  • Describe how experience can affect sex hormone levels
  • Compare and contrast the Adrenogenital and the Androgen Insensitivity Syndromes and explain how they support the hypothesis that sexual orientation is biologically based
  • Describe the Psychoanalytic theory of homosexuality
  • Identify the brain areas whose size appears to be related to sexual orientation
  • Describe how stress might impact sexual orientation
  • Compare and contrast the influence of biological and environmental factors in determining sexual orientation

 

EMOTION
ReadingKalat Chpt. 12

Lecture Outline
Components of the emotional response:
 behavioral
 autonomic
 psychological

Theories of emotion
 James Lange
 Cannon Bard

Brain Areas involved in emotion

Learning Objectives:

  • Compare and contrast the James-Lange and Cannon-Bard theories of emotion
  • Describe the evidence against the James-Lange theory of emotion
  • Describe the role of autonomic arousal in emotion
  • Identify the brain areas involved in emotion
  • Describe MacLean’s 3 emotion circuits, including the brain areas involved and their roles in emotion
  • Describe the role of the amygdala in emotion
  • Describe the role of the orbital frontal cortex in emotion

 

LEARNING AND MEMORY
Reading:  Chapter 13 Kalat

Lecture Outline:

Introduction

Nature of Learning and Memory
 -learning processes (e.g., classical conditioning)
 -memory types (short-term and long-term)
 -Hebb's cell assembly theory of learning and memory

Activity Dependent Plasticity in the Mammalian Nervous System
 -Long-Term Potentiation (LTP)
 -Cellular and biochemical mechanisms of LTP
 -Possible role of LTP in Fear Conditioning

Learning Objectives:

  • Describe the procedure used in classical conditioning
  • Define unconditioned stimulus, conditioned stimulus, unconditioned response, and conditioned response
  • Compare and contrast working memory and long-term memory
  • Describe Hebb’s reverberating circuit theory of how memories are formed
  • Describe how Hebb’s reverberating circuit theory accounts for working memory and long-term memory
  • Describe how long-term potentiation is generated in the hippocampus
  • Describe the roles of the NMDA, kainate, and quisqualate glutamate receptors in long-term potentiation in the hippocampus
  • Explain how high frequency stimulation of the perforant pathway leads to an increase in the excitatory post-synaptic potentials in the hippocampal cells
  • Identify the brain areas important in fear conditioning involving a neutral auditory stimulus
  • Explain how the synaptic changes associated with long-term potentiation can be used to explain auditory fear conditioning.

 

THE NEUROPSYCHOLOGY OF MEMORY

 

Reading: Chpt 13 Kalat

 

Lecture Outline:

  • Lashley's Studies: Search for the engram
  • Clinical Studies
    • H.M. and the Hippocampus
    • Wernicke-Korsakoff's syndrome
    • Alzheimer's Disease
  • Prefrontal cortex and working memory

Learning objectives:

  • Explain Lashley’s concept of equipotentiality
  • Explain Lashley’s concept of mass action
  • Describe the role of the hippocampus in memory formation
  • Describe Wernicke-Korsakoff’s Syndrome
  • Explain the causes of Wernicke-Korsakoff’s syndrome
  • Describe the brain areas affected by Wernicke-Korsakoff’s syndrome
  • Describe the memory deficits associated with Alzheimer’s disease
  • Describe the cortical area involved in working memory