NEUROPSYCHOLOGY/BEHAVIORAL NEUROSCIENCE

C J Long


CONTENTS

Series Overview
Predoctoral Training
The UM Program
References

PHYSIOLOGICAL

Introduction
Neuron
Supporting Cells
Resting Potential
Action Potential
Synaptic Connections
Techniques
Organizational Plan
Pharmacology
Neural Coding
Vision
Audition
Somatosensory
Thalamus
Cortex
Brain Mechanisms & Movement
Reflexes & Reflex Integration
Cerebellum
Activation
Sleep
Attention
Emotion
Theories of Emotion
Homeostasis
Memory
Learning
Disorders of CNS

NEUROPSYCHOLOGY

Intro. to Neuropsyc.
History of Neuropsyc.
Brain-Behavior Summary
Brain-Behavior Detailed
Cerebrum Review

NEUROPATHOLOGY

Neuropathology
Neurological Exam
Neoplastic Processes
Vascular Disorders
Traumatic Brain Injury
Infectious Diseases
Dementia

ISSUES

Overview of Issues
Localization?
1CHP&WOL doc
2CHP&WOL DOC
Connectionistic
Hierarchical Systems
Qualitative vs Quantitative
Battery vs Individualized
Frontal Lobe Function
Temporal Lobe Function
Parietal Lobe Function
Occipital Lobe Function

ASSESSMENT STRATEGIES

Assessment Approach
Eval. Sequence
Hisory: Outline
History for TBI

Mental Status
Test Reviews
General Screening Devices
Test Batteries
Localization
Dysfunction
Age Norms for HRB
Report Outline
Sample Report
Misconceptions

THE DATA BASE

Information Source
Demographics
Test Behavior
History
Situational Factors
Neuropsychological Data
Etiology

DECISION STRATEGIES

DEV-PLAN.DOC
DEC-NAN.DOC
DEC-III.DOC
DECIS-91.DOC
CRITERIA.DOC
Computational Models
Hartlage.doc

ASSESSMENT ISSUES

DISABILI.DOC
DVR.DOC
DVR-S.DOC
DVR.DOC

TREATMENT

WEB SITES

REFERENCES

Bulletin Board

NP HOME

CJ's HOME

AUDITION


Overview of Topics


    Lesson Objectives

    Auditory Receptors

    Two Types of Auditory Pathways

    The Structures in the Ventral Cochlear Pathway

    General Functions

Lesson Objectives

  1. Explain the similarities and differences between the dorsal and ventral cochlear nuclei.

  2. Trace the ventral cochlear pathway and describe the basic function of each component.

  3. Explain how hair cells in the organ of corti are capable of frequency coding.

  4. Explain how the cortex functions to accomplish pattern discrimination.

  5. Explain how sound is transmitted to the hair cells.


Auditory Receptors

Stimulus

Receptor - Cochlea
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Two Types of Auditory Pathways

  1. Dorsal cochlear nucleus
    • More primitive function (reflex and activation)
    • Noncrossing fibers - lateral lemniscus and Reticular Formation
    • Others cross - form lateral lemniscus
    • Superior olivary nuclei
    • Some uncrossed fibers and some crossed
    • Smaller cells
    • Serves more generalized hearing

  2. Ventral cochlear nucleus (VCN)(lemniscal)
    • Fibers bifurcate--to each nucleus
    • Dual nature maintained
    • Bipolar cells in VCN
    • Serves pitch discrimination
    • Stotler (1961)- Connections for different pitches localized here (hi - dorsal).
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Structures in the Ventral Cochlear (VCN) Pathway

  1. Cochlear nerve--bipolar cells
  2. Spiral ganglion - at base of spiral lamina.
  3. Ventral cochlear nucleus (lemniscal)
  4. Superior olivary nucleus--reflex
    • Tensor tympani muscle--to malleus
    • Stapedius muscle--to stapes
  5. Trapezoid body--sound localization
  6. Lateral lemniscus and nuclei
  7. Reticular formation, cerebellar vermis
  8. Inferior colliculus
  9. Brachium of inferior colliculus
  10. Medial geniculate
  11. Auditory radiations
  12. Auditory cortex -- Pattern discrimination
Pathway figure
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Auditory Coding


General Functions

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TERMS to Know

Cochlear microphonic Bifurcation Evoked potential
Lateral lemniscus Auditory radiations Ventral cochlear nucleus
Tonotopic localization Spiral ganglion Dorsal cochlear nucleus
Stapedius muscle Medial geniculate Brachium of inferior colliculus
Tensor tympani muscle Cochlear nerve Basilar membrane
Cochlea Inferior colliculus Tectorial membrane
Organ of Corti Trapezoid body Hair cells
TOP

Links to Associated Areas

    LINK Sense of Hearing
    LINK Physiology of Hearing