Rosanna Olsen
@rosanna_olsen
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Cognitive Neuroscientist @RosannaOlsen @fediscience .org
Toronto, ON, Canada
Joined February 2015
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THE HIPPOCAMPUS, WHICH IS BY THE WAY, A CORTICAL STRUCTURE, JUST NOT A SIX-LAYERED NEOCORTICAL STRUCTURE, IS ACTUALLY MADE UP OF FIVE DIFFERENT SUBREGIONS: DENTATE GYRUS, CA1, CA2, CA3, AND SUBICULUM. ALSO CA4 (MAYBE) AND ALSO PRE AND PARASUBICULUM AND ALSO (MAYBE) PROSUBICULUM.
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My first in-person marathon since Boston 2019! And it was another BQ and I got 2nd in my age category! 💙💛🦄
Feeling tired but grateful to have had this opportunity.
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Life/work have been fairly hectic over the past week so I haven't found the time until today to post here about my 2022
@bostonmarathon
experience!
I am proud to share I had a 7 min PB (personal best) for a finish time of 3:13:14 (7:23 min/mile | 4:35 min/km).
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Thank you to the awards committee for awarding me with the
#OHBM2024
Diversity and Inclusion Champion award w a special TY to
@LucinaUddin
for nominating me. 🤗
Congrats to the other award winners honoured today
@misicbata
@AFornito
@KarimH349
Vincent Calhoun
@arokem
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Here we go!!! Bib
#12488
. I'm in wave 2 (will start running at 10:25am EST)
#Boston2019
#BostonMarathon2019
#MarathonMonday
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Happy to announce that the
#OlsenLab
has produced our first PhD!! Dr. Kirk Geier successfully defended his final oral exam yesterday and his thesis was accepted "as is"! 🥳😎🤗 Congratulations,
@Geier_KT
!
@rotmanresearch
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First published paper from my very own lab! ❤
Started as a summer student project by 2nd author Yesh Rai and turned into what I think will be a useful summary of the current literature!
Category specificity in the medial temporal lobe: Systematic review of fMRI & patient studies examining role of MTL regions in representing objects, scenes, & faces
Useful review by Jess Robin,
@rosanna_olsen
, & colleagues!
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So good I'll tweet it twice!
Check out a Visual Introduction to Hierarchical Modeling by
@mf_viz
.
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Wrapping up my work week and getting ready to fly out for my 3rd in-person
@bostonmarathon
!
Boston is always special, but this year I get to chase the 🐐
@EliudKipchoge
as he attempts to break yet another record!
Can't wait to feel that Boston energy!
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Can anyone tell that one of my students is organizing
@rotmanresearch
rounds this year? What a lineup 🤩!!
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.
@Brad_Buchsbaum
& I are recruiting a postdoc to study memory using naturalistic, dynamic materials using functional neuroimaging. Research questions could also address cognitive aging. Experience in fMRI/EEG/MEG analysis preferred.
Application link avail soon.
@rotmanresearch
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A good visualization/reminder that the hippocampus is (3-layered) cortex (i.e. it's not a subcortical structure as commonly assumed by fMRI researchers)! 😎🤓
Great question😊! While you can visualize 6 layers in the entorhinal cortex (I to VI), the hippocampus is a 3-layered structure (the dentate gyrus is counted separately). You can see both regions simultaneously in the image below! 🟠Neurons, 🟣Astrocytes
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Ran a 1:32 half marathon on Sunday at
@ChillyHalf
. One minute closer to my goal of breaking 90min and a gorgeous day for a race!
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Feeling tired but proud that I was able to complete the 2020 virtual
@bostonmarathon
yesterday in Toronto. I wasn't as well trained as I should have been, my stomach was off, and the weather was terrible, but I pushed through to
#finishSTRONG
.
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New paper out in Current Opinion in Behavioral Sciences:
Zooming in and zooming out: the importance of precise anatomical chara...
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Very pleased to announce that the
#NOA
for our grant "A harmonized medial temporal lobe subregion segmentation protocol: an essential element for dementia research" has arrived!!
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Just received my confirmation that I'm officially registered for the 2019
@bostonmarathon
! Woot!
It sounds like there were a lot of qualifiers this year, so I'm feeling relieved and excited that I made the cut-off!
Registration reopens tomorrow at 10am ET for anyone with a valid qualifying time. There’s an increased number of submissions this year, so only percentage from Week 2 will be accepted. We applaud everyone who accomplishes a BQ time. Registration updates:
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I am happy to announce that graduate student
@negar_mazloum
successfully defended her Master's thesis this morning! She gave a fantastic presentation! Congratulations, Negar!! 🥳🥂
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Very tired but also very proud of my new marathon PB (6 min improvement) at the
@torontomarathon
. Top ten finish in my age group. 😁
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The tooth fairy forgot to come last night...she must have a grant due today...
#momlife
#academicparent
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Thank you,
@AlzCanada
for funding my research! My team and I will use this funding to identify MRI and behavioural indicators of dementia at its earliest stage!
Announcing the 2018 Alzheimer Society Research Program funding recipients:
#alzheimers
#dementia
#research
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1min blurb describing my research on relating structural MRI measures to early cognitive decline. Hope to run follow-up study later this yr
Our researchers are trying to detect
#dementia
earlier.
@rosanna_olsen
's work found brain changes before
#memory
problems were noticeable
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Had a wonderful time discussing histological definitions of the medial temporal lobe cortical subregions today at my
@SfNtweets
poster! Thanks to all who stopped by!
#SfN2022
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Check out this e-symposium coming up later in January on the subregions of the thalamus!
Keynote Speakers:
John Aggleton
Manoj Saranathan
Michael Halassa
Catherine Sweeney Reed
Erik Middlebrooks
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How it started: undergraduate summer student in 2016 --> how it's going!! Dr. Parimoo in 2023 🥳
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We have written a commentary where we outline the limitations of using 1mm isotropic MRI to measure hippocampal subfield volumes. We hope that this commentary will illustrate the importance of high spatial resolution on the ability to visualize the layers that separate subfields.
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Father and son
@Brad_Buchsbaum
and (twitter recluse)
@monte_buchsbaum
both have posters today at
#OHBM2019
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Also congrats to
@fMRI_today
for becoming an
@OHBM
fellow. Not only a great scientist and leader but probably one of the fastest fMRI researchers I know!
#OHBM2022
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No turkey🦃 for me yesterday 🇨🇦 but I did have a wonderful time celebrating my first post-doctoral fellow's "graduation" with the rest of my lab. Congratulations,
@jess_robin_
on your new job at
@winterlightlabs
!
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I reinstalled the Twitter app on my phone just so I could share this adorable photo taken by my daughter as quickly as I could 💓
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In-person lab meeting, FTW! Loved seeing these faces in person again!
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Hello
#CogNeuro
#CognitiveAging
#NeuroTwitter
peeps!
We have up to six post-doctoral fellowships available at the
@rotmanresearch
@Baycrest
in Toronto, Canada!
Please see the advertisement for more detail.
@CogNeuroNews
@OHBM
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I stopped by the White House to invite
@JoeBiden
to our poster!
Interested in MR Angiography? Check out our poster at
#SfN23
on SUNDAY (8am) with
@rosanna_olsen
,
@ValentinaPerosa
and many more!
We evaluated hippocampal vascular pattern depiction and SNR of angiography scans at 3T and 7T, and with compressed sensing.
@SfNtweets
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2nd full marathon ✔ Just missed the
#BQ
time I was shooting for but still ran strong and improved my personal best by over 10 min
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Attention MTL segmenters-in-training: Laura Wisse has a youtube channel with a set of very useful videos on hippocampal subfield segmentation and more!
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Proud to announce that Nick Hoang (
@NghiNick
) has passed his Master's defense! Nick is co-supervised by myself and my academic and life partner
@Brad_Buchsbaum
. 'Uncle Morris' was the third committee member ;)
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Completed 75km for the Bike for Brain Health and added on 25km more to make it a nice even 100km 😎
The "Easy RRI-ders" team raised over $12,000 for brain health, research, education, innovation, and care! 🙌🎉
#BikeForBrainHealth2024
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On the train to Montreal for
#OHBM2023
! Shout-out to my parents for watching the kids so both Brad and I can attend!
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I had a wonderful time speaking to
@spaikin
this morning about how memories are formed, why we remember certain things better than others, etc!
Was also a blast to reconnect with
@rotmanresearch
alums
@sheldonmemory
and
@buddhikabellana
!
What goes into making memories? Why are some stronger than others? And where are they stored?
@spaikin
asks
@rosanna_olsen
(
@rotmanresearch
),
@Char_L_Russell
(
@kingscollegelon
),
@sheldonmemory
(
@McGillPsych
), and
@buddhikabellana
(
@glendoncampus
) at 8/11pm | Producer:
@bweaver08
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I figured out how to get
@Brad_Buchsbaum
to enjoy running with me and he even let me take a
#SeptSweatSelfie
. We kept the run short and did some 200 m intervals on the track at the end (4*200m, 1min rest).
#IMovedToday
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Looking forward to this!
This week's Brain Meeting will be given by Dr
@rosanna_olsen
on Friday 5th November at 3:15pm🧠
Dr Oslen will discuss how high resolution imaging is uncovering the role of the medial temporal lobe in memory.
Request to join at
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Great turnout (over 100 people!) for our first Hippocampal Subfield Group Webinar. We will post the link to the video recording from today to YouTube soon!
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This morning I ran to St Clair and Yonge to check out some of this year's Baycrest Brains! Join me this year in our annual
#BaycrestBrainRun
and raise funds for
@Baycrest
!
#BaycrestBrainProjectWalkRun
#noblankbrains
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Good morning and happy Monday! Are you still working from home and having trouble finding motivation to exercise? (1/n)
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Taught a workshop on the brain today and serendipitously also brought a 🧠 shaped scone to serve at the workshop 😂 pc:
@NLadyka
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Favorite one-liner from Geoff Woodman's talk today at
@UofT
: "The alpha rhythm is either just brain noise or the most important signal you could ever study, depending on who you ask."
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So happy to have the opportunity to host the first
@hipposubfields
in-person training session here in Toronto! 🇨🇦 🍤
Thanks to
@DrAnaDaugherty
for leading the main session & attendees for their participation! 🤗
First training on the harmonized protocol for subfields in hippocampal body is in the books! Grateful for the leadership of
@DrAnaDaugherty
&
@rosanna_olsen
, training support of
@ThackeryBrown
,
@kelseylcanada
, &
@radmangustaf
, & resources created by
@negar_mazloum
.
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This weekend I'll be running 20+ km to visit the
#BaycrestBrains
-- an outdoor art exhibit that raises awareness and funds for
@Baycrest
. You can sign up to walk/run or support my run at
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Lovely paper out in eLIFE by Marshall Dalton et al who have done a beautiful study of the connections between the neocortex and different parts of the hippocampus. Provides new insights into long axis organization and the figures are exquisite! 😎🔥🧠🍤
Very pleased to see this long project led by Marshall Dalton in eLife (). Lots of follow up work happening now, which we can't wait to share soon. Thanks also for related eLife "Insight article" by Bryan Strange
@The_Strange_Lab
()
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Shireen rocked her committee meeting today! Great job,
@ShireenParimoo
! Looking forward to continuing to do amazing 🧠 science with you!
Photo is pre COVID but had to share again as it shows our unintentionally color coordinated outfits.
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Hi Twitter! My post-doc supervisor,
@DrJenRyan1
, is now on Twitter! If you love learning about research related to eye-movements 👀, memory ⌛️, and the brain 🧠, be sure to follow her account!
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We (
@Brad_Buchsbaum
and I) are still accepting applications for a post-doctoral fellow. Research to focus on memory and aging using naturalistic, dynamic materials and functional neuroimaging. Please share with your trainees!
Come work with us at
@rotmanresearch
in Toronto!
Application portal is now live!
Please share with those who may be interested. 🧠👩🏽💻🎓
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One of the most common questions I get from colleagues and trainers is how to QC hippocampal subfield data. We now have a preprint out on this important topic!
Happy
#SubfieldWednesday
HSGers!
We're excited to share a preprint highlighting recent HSG efforts.
Lead by
@kelseylcanada
and
@negar_mazloum
, we provide a review and recommendations of best practices for the quality control (QC) of hippocampal subfield segmentations. 🍤🥳
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It's out! The Hippocampal Subfield Group (
@hipposubfields
) led by
@WuestefeldAnika
and
@HaBaumeister
have published an important paper describing cytoarchitectonic definitions of medial temporal lobe cortex subregions, including regions involved in
#AlzheimersDisease
Hot off the press!
Happy that this work lead by
@HaBaumeister
and myself is now published in Hippocampus:
Go check out some new figures!
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Big day today! CIHR grant submitted,
@cMadan
is visiting and my first master's student,
@ShireenParimoo
, is defending her thesis today!
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Olsen lab group photo from 2019
#TAMeG
! Great day exchanging our latest findings with our fellow Toronto area memory colleagues! Thanks to
@briantlevine
@morganbarense
@RosenbaumLab
and Mary Pat McAndrews for organizing another stellar meeting!
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A hot and humid morning but we still enjoyed visiting the
#BaycrestBrains
for the 2021 Baycrest Brain Project Walk/Run!
#NoBlankBrains
!
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Is that the angular gyrus? Hard to tell at this resolution...
Not wordle. Just my latest set of fMRI results. 🤣
⬛️⬛️⬛️⬛️⬛️⬛️⬛️
⬛️⬛️⬜️⬜️⬜️⬛️⬛️
⬛️⬜️⬜️⬜️🟧⬜️⬛️
⬛️⬛️⬜️⬜️⬜️⬜️⬛️
⬛️⬛️⬛️⬛️⬜️⬛️⬛️
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Yesterday we heard discussions about the lack of research on women's health, global disparities in access to MRI, & other barriers faced by our diverse, international community.
Let's continue this discussion at the Diversity & Inclusivity Comittee roundtable!
12:30, room 510
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I had a great time yesterday speaking about my research at the launch of this year's Brain Project!
A HUGE thank you to
@rotmanresearch
's
@rosanna_olsen
for participating in today's Yogen Früz Brain Project media launch and talking about the work being done at
@Baycrest
to help delay the onset of Alzheimer's and other related dementias
#NoBlankBrains
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Who else is headed to Rome 🇮🇹 for
#OHBM2019
?? 🙋♂️🙋🏽♀️🙋🏾♂️
I'm presenting on behalf of the Hippocampal Subfield Group (
@hipposubfields
) on Tuesday! Please stop by and say hello!
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Someone did this for me when I was a first year graduate student and I always try to pay it forward when I see someone struggling in the same way
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Morning run in Copenhagen before catching the train to attend the Marcus Wallenberg Symposium “Latest advances on medial temporal lobe subregions in cognition, aging, and disease”, taking place in Lund, Sweden
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Two lab alumni and former
@rotmanresearch
summer students were accepted to medical school today! Congratulations, Anastasia and Nahid! 🎉 💯 🍾
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Thanks to the Maryam Aly Twitter Alert System (TM) I now know our paper is out! 😁
Scenes as a scaffold for episodic memory: scenes facilitate associative memory and integration
Elegant studies by
@jess_robin_
&
@rosanna_olsen
!
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On the train back to Madrid after a productive and memorable visit to Universidad de Castilla-La Mancha in Albacete, Spain 🇪🇸
#ReuniondelHSG
We completed a two day neuroanatomy course and the two day segmentation working group.
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I spent countless hours in graduate school studying this figure! During our March 24 webinar you will have to opportunity to learn from the man himself-- Dr. Ricardo Insausti! 🍤😍☺️
A second
#SubfieldWednesday
post with an exciting update!
Our next webinar will take place on March 24th at 11 AM EST where the amazing Dr. Ricardo Insausti will be joining us to discuss … MTL NEUROANATOMY!🍤👏
(Note: This will occur a week earlier than the original schedule).
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If you are at
#LEARNMEM2018
this afternoon please stop by our symposium, "New perspectives on episodic memory decline - from aging to neurodegeneration" with the following presenters:
Donna Rose Addis
Lars Nyberg
Rosanna Olsen
Siddarth Ramanan
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Final race of the year!
@BRC_run_series
Tannenbaum 10km (new offical PB: 42:33). 📸 by
@Dreizle
#IMovedToday
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Folks attending
#OHBM2023
: If you want to kick off the meeting w/ an easy, 6km run tomorrow (Saturday, July 21), meet
@giuliaabaracc
and I at 7am at the Grand Quay. We will do an out and back, "social" pace. 🧠🏃���♀️🏃🏽♀️🏃
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More love for my post-doc (
@jess_robin_
)! Her review on the role of spatial representations in memory just came out! Big week for Jess!
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Excellent resource! 👀⬇️
The Penn Hippocampus Atlas is a resource consisting of segmented and normalized high-resolution ex vivo MRI and histology of the human hippocampus.
Download here >
#brainscience
#NeuroTwitter
#neuroimaging
#neuroscience
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In press now-- check it out!
@j_snytte
et al examined how memory declines relate to hippocampal/MTL cortex volume and functional MRI changes across the adult lifespan (ages 19-76) 🧠📣🍤🥳
Read our lab's latest findings from the Montreal Adult Lifespan Study of Episodic Memory by
@j_snytte
@fenercican
@rosanna_olsen
@sheldonmemory
@mnrajah
et al in
@NeuroImage_EiC
"Volume of the posterior hippocampus mediates age-related differences i...
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.
@OHBM
has a new award category this year for members who have made significant contributions to increasing diversity and inclusivity within the field of human brain mapping. Deadline to nominate is Nov 30!
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Proud to be among these amazing
#WomenInScience
at
@rotmanresearch
Just a few of the brilliant scientists at
@rotmanresearch
#WomenInScienceDay
#CdnSci
@WomenScienceDay
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Adding to my conference running posts with a stop in Edinburgh on my way to
#OHBM2022
in Glasgow, Scotland. Fantastic views and history on my tour with
@EdinRunTours
#Scientistswhorun
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My postal code is a "hot spot" -- looking forward to getting my first shot on Saturday!
The Ontario government has announced all residents 18 and older in “hot spot” postal codes will soon be able to get vaccinated. Is your postal code in this database? Check here:
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Review paper demonstrating that Alzheimer's patients with the apolipoprotein E (APOE) e4 allele have more tau in their medial temporal lobe an more memory deficits than those without the e4 allele
Essentially, APOE4+ AD patients appear to have increased tau in their MTL, causing more MTL atrophy and more memory-related deficits, while APOE4- AD patients appear to have more tau in their frontal and parietal lobes, causing more atrophy and more non-memory-related deficits.
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Getting ready to fly home from
#OHBM2022
and I'm feeling energized and optimistic for the future of
@OHBM
(cc:
@LucinaUddin
).
Thank you to Hiromasa Takemura,
@mnrajah
and
@restingstate
for making our Diversity Symposium a success (wish you were there
@Kangjoo_Lee_
and
@ycgyan
)
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Oops, I just noticed the typo, it should say "medial temporal lobe" not "medial temporal love" ♥️
This is a wonderful opportunity for trainees interested in learning about medial temporal love macro- and microstructure! 🧠 🇪🇸
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Pleased to announce that I've finally figured out how to pronounce Aducanumab.
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Today is the 7th annual Toronto Area Memory Group meeting! One of my favorite days of the year!
#TAMeG2023
😍
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"Happiness is a long run"....
Especially when that long run has chocolate bunny ears at the end!
23K at Marathon Pace
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Sad news of Eichenbaum's untimely death. Let's celebrate his life through our quest to understand memory & the brain
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