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PSC140Y-VL8

2 min read

📗 -> 10/12/25: PSC140Y-VL8

[Lecture Slide Link]

🎤 Vocab

❗ Unit and Larger Context

Experience and Brain Development - Part 1

A large part of development is nature (seen by the fact we develop human brains), and undergo similar patterns of development

Connections between neurons and their roles are influenced by experiences of a person

  • “Brain is plastic”
Why plasticity?
  • Allows less information to be encoded in the genes, to have them be determined by experience
  • Brain can develop in ways optimal to environment is in
Why so many similarities?

Lots of it accounted for by genetics
Lots of it accounted for by similar experiences between people

  • People have caregivers
  • People have language

Experience-expected processes - Experience virtually everyone will have
Binocular vision:

  • people similarly experience binocular vision and depth perception
  • Infants learn where vision is overlapped
  • Despite seeming inborn, it is developed (important because eyes might develop in different locations)
    • ‘Strabismus’ - Lazy eye/Cross eyed, eyes not aligning when fixating
      • If they do not develop the ability to fixate, binocular eyesight will not develop
      • Their vision will be based on only one eye
      • Treatments exist

Critical Periods to these processes:

  • Like the binocular vision, intervention needs to happen young before input of eye is discarded

“normal” development occurs from ‘typical’ experience

Experience and Brain Development - Part 2

Contrasting to the earlier “experience-expected processes”, we now cover:
Experience-dependent processes - Process through which lasting differences in individual experiences create & reorganize neural connections

Can see differences in:

  • Variation in how many connection there are, or how big some regions are

Experience dependent plasticity can happen at any time in development (effects are probably largest in children though)

  • This allows brain to develop differently

🧪 -> Refresh the Info

Did you generally find the overall content understandable or compelling or relevant or not, and why, or which aspects of the reading were most novel or challenging for you and which aspects were most familiar or straightforward?)

Did a specific aspect of the reading raise questions for you or relate to other ideas and findings you’ve encountered, or are there other related issues you wish had been covered?)

🔗 -> Links

Resources

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Connections

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