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Neural Activity and the Growth of the Brain : Lezioni Lincee - Dale Purves

Neural Activity and the Growth of the Brain

Lezioni Lincee

Paperback Published: 29th August 1994
ISBN: 9780521455701
Number Of Pages: 126

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Understanding the role of neural activity in the development of the brain has been a major concern of many modern neurobiologists. The reason is plain enough: since the world influences the brain by means of action potentials and synaptic potentials, activity must be the chief cause of the neural changes wrought by experience. This 1994 volume explores the hypothesis that neural activity generated by experience modulates the ongoing growth of the brain during maturation, thus sculpting in each of us a unique nervous system according to the events of our early life. Brain growth is considered at a macroscopic level by examining brain maps and their modular substructure, and at a cellular level by investigating the neuronal interactions that influence the formation and maintenance of these structures. The ways that experience influences the maturation of the brain at both macroscopic and microscopic levels are described, and the conventional wisdom is re-examined.

Lecture I: Maps
Brain growth and its potential significance
A contrary view of brain development
Brain maps
Measurement of maps in the developing brain
Lecture II: Modules
Discovery and definition
The significance of modularity
The development of modular circuitry
Lecture III: Trophic Interactions
Qualitative and quantitative accuracy of neural connections
Getting the numbers right
The importance of target cell geometry in quantitative accuracy
Does setting the value of convergence involve synapse elimination?
A basis for the interactions that determine convergence
The nature of trophic signals
Lecture IV: Activity
How neural activity might lead to information storage
The effects of activity in the developing visual system
An alternative interpretation of the effects of visual deprivation
Some pertinent observations in the peripheral nervous system
Neural activity and the growth of the brain
Some caveats
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9780521455701
ISBN-10: 0521455707
Series: Lezioni Lincee
Audience: Tertiary; University or College
Format: Paperback
Language: English
Number Of Pages: 126
Published: 29th August 1994
Country of Publication: GB
Dimensions (cm): 21.54 x 13.74  x 0.64
Weight (kg): 0.14