Enrico Glerean Profile picture
May 2, 2018 24 tweets 12 min read Twitter logo Read on Twitter
Brainhack Global 18 in Finland has just started with prof. Em Riitta Hari @aivoAALTO talking about the unsolved questions in neuroscience #bhg18 #bhg18fi
"how good are your data?" often theory comes before data (e.g. physics) and many labs do same experiment and results are combined #bhg18 #bhg18fi
"animal models, are we using the best species out of 8M species in the planet?" #bhg18 #bhg18fi
"Standard lab animal models were chosen because they were easy to breed" Yartsev science 2007
(live streaming of #bhg18 #bhg18fi here )
RH "think about functional principles about brain function: evolution" #bhg18 #bhg18fi
"the brain has evolved in the real world" #bhg18 #bhg18fi
RH "During evolution we got multiple simplifying priors: circadian rhythms, gravity, etc" #bhg18 #bhg18fi
Because of our priors we are subject to (visual) illusions, mechanics are imprinted in our brains. #bhg18 #bhg18fi
"The brain is never isolated brain <-> environment <-> other's brains" #bhg18 #bhg18fi
"Connections in the brain are reciprocal between areas and levels and almost always bidirectional" #bhg18 #bhg18fi
RH "inhibition is essential" "amongst the greatest inventions in evolution" #bhg18 #bhg18fi
RH "we are good at aiming at something (motor action); selecting the proper motor action requires control" (as in feedback/feedforward I add)
(side note, check the stream @aivoAALTO 's toe writing skill is actually quite good!)
"Body and behaviour: only in fairytails the mind is independent from the body" (The Smiths: "does the body rule the mind or does the mind rule the body? I don't know") [that was my personal addition]
"mice posture was able to reconstruct movement" cell.com/neuron/abstrac… #bhg18 #bhg18fi
RH: "Complexity vs simplexity" people always say "the brain is the most complex devise in the world" "there are extremely complicated things, not just the brain" #bhg18 #bhg18fi
"To cope with environmental complexity, human and animal brains rely on simplifying principles that allow adaptive behaviour" Alain Berthoz Simplexity #bhg18 #bhg18fi
And finally "Time! Timing is necessary" #bhg18 #bhg18fi "snapshots are not enough"
"Even in fMRI they are emphasizing the importance of time with Dynome cell.com/neuron/fulltex… and Chronnectome sciencedirect.com/science/articl…) #bhg18 #bhg18fi
RH take home messages:
1) functional principles
2) reciprocal connections
3) inhibition
4) body and behav
5) complexity and simplexity
6) timing

#bhg18 #bhg18fi
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More from @eglerean

Sep 5, 2018
This is important. Yes, re-identification of de-identified brain MRIs is possible, but it is considered to be a crime under GDPR, implemented as “data protection” laws in EU (each country made their own laws and legal consequences).
Pseudo-anonymisation assumes that it is “highly unlikely” to re-identify the data. This means that for those cases in which it becomes trivial to reidentify a subject (eg rare case study subject), special care is needed and it should be the ethical committee with the researcher..
...to decide on benefit for science/society vs potential harm to the individual. Also: I believe that sensitive data can still be shared on a per request basis as done by human connectome project or ADNI, but legislators have still to finish their job as these relate...
Read 4 tweets
Aug 28, 2018
Finally out "Maps of Subjective Feelings" with @aivoAALTO @LNummenmaa and J. Hietanen. pnas.org/content/early/… 1/7
In this study we run three web experiment asking how we perceive 100 common feelings by assessing them i) over 5 dimensional scales, ii) similarity between them iii) how they map on the body and iv) collected similar terms from @neurosynth 2/7
Results showed 5 robust clusters with DBSCAN and visualization with tSNE gave clear components related to emotional valence as well as mental saliency. 3/7
Read 10 tweets
Aug 8, 2018
As somebody pointed out already, pyramid schemes are everywhere outside academia. I’d love to work as a (data) scientist for a non-profit NGO, but as soon as profits are involved I start to question the ethic of my work. 1/n
Academia is still one of the most ethical options (if done with integrity and transparency) as I feel I am putting my skills for the benefit of society, even if basic scientific research cannot be directly translated into applications. 2/n
In my opinion the issue is that the system supports only the rockstar PI culture: there are basically no permanent positions for staff scientists. You can only become a PI/professor or leave. 3/n
Read 6 tweets
Jul 9, 2018
I’m a Matlab “guru” (or so they say) since 1999, but I’ve decided to switch to Python as the future for me can only be there. Here’s a nice book to do the switch enthought.com/white-paper-ma… 1/n
Don’t get me wrong, I love Matlab. I’ve done anything with Matlab from signal processing toolboxes to art installations (!). 2/n
I’ve made music with Matlab and beautiful scientific pictures. But I feel like a scientist from 100 years ago who was publishing articles in German (or French or Italian). All languages are beautiful and can be used to express anything... 3/n
Read 5 tweets
Jun 4, 2018
"Cortical Cartography: Characterising the peaks and valleys of the cerebral cortex" talk by @cMadan has just started at @AaltoUniversity @abc_aalto brainscience.aalto.fi/en/current/eve…
Excellent educative talk based on measures from structural MRI and their correlations with for example age. See ncbi.nlm.nih.gov/pubmed/27103141
Chris @cMadan is now talking about fractal dimensionality: a measure how complex a structure is (a sphere has low fractal dim.) which also correlates with age.
Read 12 tweets
Apr 18, 2018
Soon starting Em. Prof. Riita Hari (Aalto University) @aivoAALTO :
"How to react fast with a slow brain".

Live stream at this link: connect.funet.fi/neuroscience/
Live tweeting under #brainandmind hashtag.
I once again have high expectations from this talk!
Introduction about Riitta Hari by @hovatta with the long list of achievements that I will not mention here for lack of space. :) #brainandmind
Read 62 tweets

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