Left hemisphere🧠

The left cerebral hemisphere is responsible for narrow attention. An animal needs to be able to focus their attention narrowly and with precision. For example, a bird needs to focus on a grain of corn that it must eat, in order to pick it out from the pieces of grit on which it lies. The left hemisphere sees things abstracted from context, and broken into individual parts, from which it then reconstructs a ‘whole’. The left hemisphere is specialised in categorisation of stimuli and fine control of motor response. The left hemisphere uses a ‘local’ strategy – grouping things according to particular features that must be invariably present. The left hemisphere is more reliant on the neurotransmitter dopamine.

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References

• Mcgilchrist, Iain. (2010). The Master and His Emissary Chapter 1 Asymmetry and the Brain (p. 60). London, UK: Yale University Press.

• Mcgilchrist, Iain. (2010). The Master and His Emissary Chapter 2 What Do the Hemispheres Do (p. 72). London, UK: Yale University Press.

Metadata

Type:🔵 Tags: Biology / Neuroscience / Anatomy / Neuroanatomy Status:☀️