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type batter

Damage or wear to type, resulting in a defective impression. Because each battered type creates a unique impression, Hinman, Blayney, and others have successfully used evidence from ...

mental handicap

mental handicap   Reference library

The Oxford Companion to the Mind (2 ed.)

Reference type:
Subject Reference
Current Version:
2006
Subject:
Science and technology, Psychology, Philosophy
Length:
1,823 words

...neonatal period, factors such as high fever, jaundice, failure to breathe properly, or inadequate or unsuitable nutrition may cause retardation. The child's brain may be damaged by poisoning from sucking toys painted with paint containing lead monoxide or cadmium, or by baby battering ( see child abuse ), or by falls. One category in the AAMD list should be looked at with particular attention: diseases and conditions due to unknown or uncertain factors with structural reaction alone manifest—a category into which the ‘wild boy’ of Aveyron might well fit. It...

brain development

brain development   Reference library

The Oxford Companion to the Mind (2 ed.)

Reference type:
Subject Reference
Current Version:
2006
Subject:
Science and technology, Psychology, Philosophy
Length:
6,208 words
Illustration(s):
5

...In Spain, Santiago Ramón y Cajal used silver staining to lay the foundations of modern neuroanatomy. Cajal pioneered microscope studies of how the brain develops. He imagined the growing tip of each new nerve fibre probing its way with delicate filaments, ‘a sort of battering ram, possessing an exquisite chemical sensitivity, rapid amoeboid movements and a certain driving force that permits it to push aside, or cross, objects in its way’. He concluded that formation of the right patterns of connections depends upon how this ‘growth cone’ chooses a...

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