TB10 B&B Lecture 2; How can multiple neurons represent information?

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  • Created by: mint75
  • Created on: 23-05-16 12:57

1. Which of these is another feature of SPARSE population coding?

  • May require complex architecture
  • Resistant to interference and efficient in terms of energy use
  • May require complex learning rules
  • Prone to interference and efficient in terms of neurons required
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2. What is a metamer?

  • Mixtures that produce the same activity as a spectral colour
  • Colours that correspond to a single wavelength

3. What is a spectral colour?

  • Colours that correspond to a single wavelength
  • Mixtures of colours that produce the same activity as a spectral colour
  • A firing rate weighted average of each neurons preferred value

4. What is sparsity?

  • A subset of the grandmother cell hypothesis
  • The proportion of neurons that fire in a given time window
  • Mixtures that produce the same activity as a spectral colour
  • How many neurons are found in a space which codes for a particular stimulus (influences gross firing rate)

5. What is the name for a pattern that cant be distinguished aka a indistinguishable percept?

  • Metamers, mixtures that produce the same activity. Cant be distinguished from spectral colours
  • Spectral colours, mixtures that produce the same activity. Cant be distinguished from metamers.

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