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Single Idea 4913

[filed under theme 7. Existence / E. Categories / 2. Categorisation ]

Full Idea

The discovery that a single brain lesion can erase all knowledge of man-made artefacts, or all knowledge of animals, suggests that these categories somehow hard-wired into the brain - that we all have a set of 'memory pigeonholes'.

Clarification

A 'lesion' is damage

Gist of Idea

Brain lesions can erase whole categories of perception, suggesting they are hard-wired

Source

Rita Carter (Mapping the Mind [1998], p.190)

Book Ref

Carter,Rita: 'Mapping the Mind' [Phoenix 2000], p.190

A Reaction

Presumably something can become 'hard-wired' through experience, rather than from birth. The whole idea of 'hard-wired' seems misleading about the brain. What matters is that the brain physically constructs categories.

The 19 ideas from Rita Carter

4902 Pain doesn't have one brain location, but is linked to attention and emotion [Carter,R]
4904 Proper brains appear at seven weeks, and neonates have as many neurons as adults do [Carter,R]
4903 Scans of brains doing similar tasks produce very similar patterns of activation [Carter,R]
4906 Babies show highly emotional brain events, but may well be unaware of them [Carter,R]
4905 Normal babies seem to have overlapping sense experiences [Carter,R]
4907 The 'locus coeruleus' is one of several candidates for the brain's 'pleasure centre' [Carter,R]
4908 No one knows if animals are conscious [Carter,R]
4909 The only way we can control our emotions is by manipulating the outside world that influences them [Carter,R]
4910 Sense organs don't discriminate; they reduce various inputs to the same electrical pulses [Carter,R]
4911 The recognition sequence is: classify, name, locate, associate, feel [Carter,R, by PG]
4912 Out-of-body experiences may be due to temporary loss of proprioception [Carter,R]
4913 Brain lesions can erase whole categories of perception, suggesting they are hard-wired [Carter,R]
4914 A frog will starve to death surrounded by dead flies [Carter,R]
4915 In primates, brain size correlates closely with size of social group [Carter,R]
4916 There is enormous evidence that consciousness arises in the frontal lobes of the brain [Carter,R]
4917 Consciousness involves awareness, perception, self-awareness, attention and reflection [Carter,R]
4918 In blindsight V1 (normal vision) is inactive, but V5 (movement) lights up [Carter,R]
4919 There seems to be no dividing line between a memory and a thought [Carter,R]
4920 Thinking takes place on the upper side of the prefrontal cortex [Carter,R]