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Sean McHugh

expert reaction to study on screen use and white brain matter in children | Science Med... - 0 views

www.sciencemediacentre.org/white-brain-matter-in-children

research screentime screen time

shared by Sean McHugh on 09 Nov 19 - No Cached
  • the study has a number of features that reduce confidence in the robustness of the findings.
  • The review of prior literature is unbalanced to emphasise adverse effects of screen time and ignore conflicting studies
  • too small to give reliable estimates of effects of screen time
  • ...7 more annotations...
  • the scale does not distinguish between TV and other types of screen use
  • no child had a vocabulary score in the impaired range
  • misleading
  • The study was not pre-registered, making it hard to know how many analyses were conducted but not reported
  • nothing is said about predicted associations between the brain measures and the language measures
    • Sean McHugh
      Sean McHugh on 09 Nov 19
       
      This highlights the difference between neuroscience and cognitive science, specifically indicators about changes in brain tissue mean nothing unless they are accompanied by behavioural indicators that support these observations. In the case of this study the children were found to have language development that was more advanced than would be expected for their age regardless of the brain scans.
  • The study does not provide credible evidence of an adverse effect of screen time on child development, but could serve to stoke anxiety in parents who may worry that they have damaged their child’s brain by allowing access to TV, phones or tablets
  • an association between screen time and brain wiring says nothing about causation: you can speculate that an apparent delay in brain development might be caused by high screen time but it is equally possible that lower brain developmental status increases screen time
Sean McHugh

Should Googling in exams be allowed? | Lola Okolosie and Chris McGovern | Comment is fr... - 0 views

www.theguardian.com/...d-google-searches-gcse-a-level

exams edtech

shared by Sean McHugh on 06 May 15 - No Cached
  • pupils should be able to use Google during GCSE and A-level exams.
  • It’s perhaps best to concede that this is something that would work better in some subjects – history and geography come to mind – than others, and only then for particular questions. Colleagues in the languages department might well despair at the thought of exam scripts peppered with inexplicable phraseology gathered from Google Translate.
  • Why then pretend this isn’t a fact of 21st-century life, an important part of how grownups in the world of work conduct their research? The role of a teacher is varied. We are here to inspire, encourage, excite and prepare pupils for the wider world. It is bizarre to omit this cornerstone of modern life from our pupils’ most important educational experiences.
  • ...1 more annotation...
  • Without a solid knowledge foundation, pupils won’t be able to conduct a quick and fruitful Google search anyway.
Sean McHugh

How Facebook is taking mind reading from sci-fi to reality - The Verge - 0 views

www.theverge.com/...uilding-8-mind-reading-f8-2017

touch typing

shared by Sean McHugh on 27 May 17 - No Cached
  • Facebook’s plans for two ambitious projects: one to develop a system for letting you type with just your thoughts, and another to let you “hear” using vibrations on your skin. This would be done through brain-computer interfaces — devices that can read neural activity and translate it into digital signals, and vice versa
  • Facebook’s goal is to develop something it calls a “brain click — a way to complete tasks in augmented reality using your mind. You could brain click to dismiss a notification that popped up on your AR glasses, for example
  • letting people type with their thoughts
  • ...5 more annotations...
  • send discrete messages delivered through touch
  • extract semantic meaning from touch, to create what just might amount to a new form of language
  • exploring how optical imaging could get real-time data from the brain and translate it into words. The resulting device could be something like a neural cap worn on the head, or some type of band that stretches around the back of the skull.
  • literally getting inside your head and under your skin.
  • the technology should be designed to operate only during the final part of the speech process, right before your brain tells your mouth to start moving. The thought is already formed, and you have made an explicit choice to share it.
  • Sean McHugh on 27 May 17
     
    Maybe this is the tech that could replace the keyboard, still a few decades away though.
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