Rosanna Olsen
@rosannaolsen.bsky.social
Cognitive Neuroscientist; interested in understanding how memory changes as we age; I also love cats and running marathons
Senior Scientist, Rotman Research Institute
Associate Professor, Psychology, University of Toronto
https://www.olsenmemorylab.com/
Senior Scientist, Rotman Research Institute
Associate Professor, Psychology, University of Toronto
https://www.olsenmemorylab.com/
Reposted by Rosanna Olsen
🧠🚨 How does the hippocampus transform the visual similarity space to resolve memory interference?
In this new preprint, we found that the hippocampus sequentially inverts the behaviorally relevant dimensions of similarity 🧵
www.biorxiv.org/content/10.1...
In this new preprint, we found that the hippocampus sequentially inverts the behaviorally relevant dimensions of similarity 🧵
www.biorxiv.org/content/10.1...
Hippocampal transformations occur along dimensions of memory interference
The role of the hippocampus in resolving memory interference has been greatly elucidated by considering the relationship between the similarity of visual stimuli (input) and corresponding similarity o...
www.biorxiv.org
October 14, 2025 at 4:48 PM
🧠🚨 How does the hippocampus transform the visual similarity space to resolve memory interference?
In this new preprint, we found that the hippocampus sequentially inverts the behaviorally relevant dimensions of similarity 🧵
www.biorxiv.org/content/10.1...
In this new preprint, we found that the hippocampus sequentially inverts the behaviorally relevant dimensions of similarity 🧵
www.biorxiv.org/content/10.1...
Super excited for this paper from postdoc @grahamflick.bsky.social who has used eye tracking and MEG to better understand how the timing of our eye movements can affect our visual perception and memory.
Memory might depend on when you look, not just what you see
Happy to share a new preprint from my postdoctoral work with Jed Meltzer, @drjenryan.bsky.social, and @rosannaolsen.bsky.social
Paper: doi.org/10.1101/2025...
Happy to share a new preprint from my postdoctoral work with Jed Meltzer, @drjenryan.bsky.social, and @rosannaolsen.bsky.social
Paper: doi.org/10.1101/2025...
Phase-locking saccades to posterior alpha oscillations improves the neural representation of visual objects during memory formation
Visual memory formation begins with the intake and neural processing of discrete samples provided by gaze fixations and saccades. Past research has highlighted a functional relationship between the ti...
doi.org
October 14, 2025 at 5:01 PM
Super excited for this paper from postdoc @grahamflick.bsky.social who has used eye tracking and MEG to better understand how the timing of our eye movements can affect our visual perception and memory.
Reposted by Rosanna Olsen
Fyi if you're an educator looking for videos about the brain and/or how neuroscience is done, check out
@brainfacts.org's YouTube page: youtube.com/@brainfactsorg
It includes submissions to their Brain Awareness Week video contest, which can be quite fun! #neuroskyence
@brainfacts.org's YouTube page: youtube.com/@brainfactsorg
It includes submissions to their Brain Awareness Week video contest, which can be quite fun! #neuroskyence
BrainFacts.org
BrainFacts.org is an authoritative source of information about the brain and nervous system for the public. The site is a public information initiative of The Kavli Foundation, the Gatsby Charitable F...
youtube.com
September 29, 2025 at 2:29 PM
Fyi if you're an educator looking for videos about the brain and/or how neuroscience is done, check out
@brainfacts.org's YouTube page: youtube.com/@brainfactsorg
It includes submissions to their Brain Awareness Week video contest, which can be quite fun! #neuroskyence
@brainfacts.org's YouTube page: youtube.com/@brainfactsorg
It includes submissions to their Brain Awareness Week video contest, which can be quite fun! #neuroskyence
Reposted by Rosanna Olsen
Deadline Oct 15: Asst. prof. (tenure track), AI in Psych Science, @uoftpsychology.bsky.social jobs.utoronto.ca/job/Toronto-...
Assistant Professor - Artificial Intelligence in Psychological Science
Assistant Professor - Artificial Intelligence in Psychological Science
jobs.utoronto.ca
September 10, 2025 at 10:28 PM
Deadline Oct 15: Asst. prof. (tenure track), AI in Psych Science, @uoftpsychology.bsky.social jobs.utoronto.ca/job/Toronto-...
Reposted by Rosanna Olsen
Woohoo 🥳
Congratulations to Sara for also succeeding defending her MA thesis (co-supervised by @rosannaolsen.bsky.social) yesterday !!
@researchtmu.bsky.social
Congratulations to Sara for also succeeding defending her MA thesis (co-supervised by @rosannaolsen.bsky.social) yesterday !!
@researchtmu.bsky.social
Congratulations Sara Ahmed from the BHEAM Lab Psychology at Toronto Metropolitan University on being a 2025 CIHR Vanier Scholar!!!
Read more about Sara’s research at:
www.torontomu.ca/graduate/fut...
Read more about Sara’s research at:
www.torontomu.ca/graduate/fut...
Vanier Canada Graduate Scholarship recipient: Sara Ahmed, Psychology PhD student
www.torontomu.ca
August 19, 2025 at 10:48 PM
Woohoo 🥳
Congratulations to Sara for also succeeding defending her MA thesis (co-supervised by @rosannaolsen.bsky.social) yesterday !!
@researchtmu.bsky.social
Congratulations to Sara for also succeeding defending her MA thesis (co-supervised by @rosannaolsen.bsky.social) yesterday !!
@researchtmu.bsky.social
Reposted by Rosanna Olsen
Mapping cerebral blood perfusion and its links to multi-scale brain organization across the human lifespan journals.plos.org/plosbiology/...
Mapping cerebral blood perfusion and its links to multi-scale brain organization across the human lifespan
How does cerebral blood perfusion map onto micro-, meso- and macro-scale brain structure? Using arterial spin labeling data from the Human Connectome Project, this study provides a detailed characteri...
journals.plos.org
August 7, 2025 at 2:18 AM
Mapping cerebral blood perfusion and its links to multi-scale brain organization across the human lifespan journals.plos.org/plosbiology/...
Reposted by Rosanna Olsen
🚨 New preprint alert!
Excited to share our latest work on alpha/beta activity, eye movements, and memory.
Across 4 experiments combining scalp EEG/iEEG with eye tracking, we show that alpha/beta activity directly reflects eye movements, and only indirectly relates to memory.
👇 Highlights (1/7):
Excited to share our latest work on alpha/beta activity, eye movements, and memory.
Across 4 experiments combining scalp EEG/iEEG with eye tracking, we show that alpha/beta activity directly reflects eye movements, and only indirectly relates to memory.
👇 Highlights (1/7):
Low-frequency brain oscillations reflect the dynamics of the oculomotor system: a new perspective on subsequent memory effects https://www.biorxiv.org/content/10.1101/2025.07.29.667451v1
July 30, 2025 at 7:33 PM
🚨 New preprint alert!
Excited to share our latest work on alpha/beta activity, eye movements, and memory.
Across 4 experiments combining scalp EEG/iEEG with eye tracking, we show that alpha/beta activity directly reflects eye movements, and only indirectly relates to memory.
👇 Highlights (1/7):
Excited to share our latest work on alpha/beta activity, eye movements, and memory.
Across 4 experiments combining scalp EEG/iEEG with eye tracking, we show that alpha/beta activity directly reflects eye movements, and only indirectly relates to memory.
👇 Highlights (1/7):
Reposted by Rosanna Olsen
New CNeuroMod-THINGS open-access fMRI dataset: 4 participants · ~4 000 images (720 categories) each shown 3× (12k trials per subject)· individual functional localizers & NSD-inspired QC . Preprint: arxiv.org/abs/2507.09024 Congrats Marie St-Laurent and @martinhebart.bsky.social !!
July 30, 2025 at 1:57 AM
New CNeuroMod-THINGS open-access fMRI dataset: 4 participants · ~4 000 images (720 categories) each shown 3× (12k trials per subject)· individual functional localizers & NSD-inspired QC . Preprint: arxiv.org/abs/2507.09024 Congrats Marie St-Laurent and @martinhebart.bsky.social !!
Reposted by Rosanna Olsen
Western University is offering new scholarships of up to 40k CAD for four years to doctoral students who are studying at, have an offer from, or have had an offer rescinded from one of the top 100 American universities.
Come and study with me or one of my colleagues!
Come and study with me or one of my colleagues!
Graduate students who have an offer to study in the US but are reconsidering or have been denied entry or current grad students who want to leave, then consider coming to Western University in Canada. Our University just launched a US-CAN Doctoral Excellence Program : grad.uwo.ca/finances/wes...
US-CAN Doctoral Excellence Award
Western University, in vibrant London, Ontario, delivers an academic and student experience second to none.
grad.uwo.ca
July 14, 2025 at 1:14 PM
Western University is offering new scholarships of up to 40k CAD for four years to doctoral students who are studying at, have an offer from, or have had an offer rescinded from one of the top 100 American universities.
Come and study with me or one of my colleagues!
Come and study with me or one of my colleagues!
Reposted by Rosanna Olsen
Excited to share my new lab website!
The Learning & Behavior Change Lab will launch at Rice in July 2026. I’ll be recruiting over the next year! @ricesocsci.bsky.social
www.sinclairlab-rice.com
The Learning & Behavior Change Lab will launch at Rice in July 2026. I’ll be recruiting over the next year! @ricesocsci.bsky.social
www.sinclairlab-rice.com
Sinclair Lab
The Learning & Behavior Change Lab at Rice University, directed by Dr. Sinclair
www.sinclairlab-rice.com
July 14, 2025 at 4:27 PM
Excited to share my new lab website!
The Learning & Behavior Change Lab will launch at Rice in July 2026. I’ll be recruiting over the next year! @ricesocsci.bsky.social
www.sinclairlab-rice.com
The Learning & Behavior Change Lab will launch at Rice in July 2026. I’ll be recruiting over the next year! @ricesocsci.bsky.social
www.sinclairlab-rice.com
Reposted by Rosanna Olsen
July 8, 2025 at 4:17 PM
Reposted by Rosanna Olsen
We loved Dr Joana Cabral's excellent keynote at #OHBM2025
In our latest #BrainBite, we created a summary of some of her work, written for non-experts.
Could slow rhythmic brain waves be key to understanding cognition? Read the article here: www.ohbm-com.com/brain-bites/...
In our latest #BrainBite, we created a summary of some of her work, written for non-experts.
Could slow rhythmic brain waves be key to understanding cognition? Read the article here: www.ohbm-com.com/brain-bites/...
Keynote series Dr. Joana Cabral - The Brain’s Slow Dance: How Macroscale Oscillations Orchestrate Long-Range Neural Communication — OHBM Communications
A groundbreaking study led by Dr. Joana Cabral (University of Minho) reveals how slow, brain-wide oscillations—detected via ultrafast fMRI—coordinate long-range neural communication in female rats. ...
www.ohbm-com.com
July 5, 2025 at 3:09 PM
We loved Dr Joana Cabral's excellent keynote at #OHBM2025
In our latest #BrainBite, we created a summary of some of her work, written for non-experts.
Could slow rhythmic brain waves be key to understanding cognition? Read the article here: www.ohbm-com.com/brain-bites/...
In our latest #BrainBite, we created a summary of some of her work, written for non-experts.
Could slow rhythmic brain waves be key to understanding cognition? Read the article here: www.ohbm-com.com/brain-bites/...
Reposted by Rosanna Olsen
An Analysis of 200 pairwise statistics for functional brain connectivity in tasks such as hub mapping, distance relationships, structure-function coupling and behavior prediction highlights their effectiveness for neurophysiological applications.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Benchmarking methods for mapping functional connectivity in the brain - Nature Methods
In this Analysis, Liu et al. benchmark more than 200 pairwise statistics for functional brain connectivity in tasks such as hub mapping, distance relationships, structure–function coupling and behavio...
www.nature.com
June 6, 2025 at 3:51 PM
An Analysis of 200 pairwise statistics for functional brain connectivity in tasks such as hub mapping, distance relationships, structure-function coupling and behavior prediction highlights their effectiveness for neurophysiological applications.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
@giuliaabaracc.bsky.social @franklandlab.bsky.social @sjo09.bsky.social @richardfbetzel.bsky.social @fmri-today.bsky.social @vborghesani.bsky.social @cherylkeller.bsky.social @toddc.bsky.social @olejensen.bsky.social so many #Scientistswhorun
Thanks to @rosannaolsen.bsky.social, I’ve just joined Strava! Any fellow neuroscientists on there? Heard there are many researchers - let’s connect!
www.strava.com/athletes/174...
www.strava.com/athletes/174...
July 1, 2025 at 3:11 AM
That's a wrap on #OHBM2025! I taught in an educational course on hippocampal neuroanatomy and gave a symposium talk on the role of medial temporal lobe subregions in associative inference
June 29, 2025 at 5:44 AM
That's a wrap on #OHBM2025! I taught in an educational course on hippocampal neuroanatomy and gave a symposium talk on the role of medial temporal lobe subregions in associative inference
This is your quarterly reminder that the hippocampus is a cortical (not subcortical) structure! Nicola Palomero-Gallagher underscored this point during our #OHBM2025 educational course!
June 24, 2025 at 5:37 AM
This is your quarterly reminder that the hippocampus is a cortical (not subcortical) structure! Nicola Palomero-Gallagher underscored this point during our #OHBM2025 educational course!
Reposted by Rosanna Olsen
"It takes a village to raise a child."
Thanks to all the members of the SP-SIG and everyone who has helped behind the scenes with the upcoming events at #OHBM2025
Thanks to all the members of the SP-SIG and everyone who has helped behind the scenes with the upcoming events at #OHBM2025
June 23, 2025 at 3:40 AM
"It takes a village to raise a child."
Thanks to all the members of the SP-SIG and everyone who has helped behind the scenes with the upcoming events at #OHBM2025
Thanks to all the members of the SP-SIG and everyone who has helped behind the scenes with the upcoming events at #OHBM2025
Reposted by Rosanna Olsen
🎉🎉#OHBM2025 is just around the corner! Remember to visit the SP-SIG stall next to the registration desk and add stickers to your badge describing your research interests!
June 22, 2025 at 4:29 AM
🎉🎉#OHBM2025 is just around the corner! Remember to visit the SP-SIG stall next to the registration desk and add stickers to your badge describing your research interests!
Reposted by Rosanna Olsen
Searching for a postdoc to work on 2 newly NIH-funded projects using intracranial EEG with TMS and direct electrical stimulation to investigate hippocampal networks supporting episodic memory. Research Scientist could also work for post-post-doc candidates. Plz spread!
cnoir.bsd.uchicago.edu/join/
cnoir.bsd.uchicago.edu/join/
June 22, 2025 at 6:23 AM
Searching for a postdoc to work on 2 newly NIH-funded projects using intracranial EEG with TMS and direct electrical stimulation to investigate hippocampal networks supporting episodic memory. Research Scientist could also work for post-post-doc candidates. Plz spread!
cnoir.bsd.uchicago.edu/join/
cnoir.bsd.uchicago.edu/join/
Are you attending #OHBM2025 in Brisbane? I will be presenting in an educational session organized by Hiromasa Takemura and Nicola Palomero-Gallagher.
Tuesday, Jun 24, 9:00 AM - 5:30 PM, Room M4
For details of our course please visit the following URL: ww6.aievolution.com/hbm2501/Even...
Tuesday, Jun 24, 9:00 AM - 5:30 PM, Room M4
For details of our course please visit the following URL: ww6.aievolution.com/hbm2501/Even...
June 20, 2025 at 1:07 AM
Are you attending #OHBM2025 in Brisbane? I will be presenting in an educational session organized by Hiromasa Takemura and Nicola Palomero-Gallagher.
Tuesday, Jun 24, 9:00 AM - 5:30 PM, Room M4
For details of our course please visit the following URL: ww6.aievolution.com/hbm2501/Even...
Tuesday, Jun 24, 9:00 AM - 5:30 PM, Room M4
For details of our course please visit the following URL: ww6.aievolution.com/hbm2501/Even...
Reposted by Rosanna Olsen
A new #Neurosalience episode is out! 🧠
The hippocampus, aging, memory and discovery
with Rosanna Olsen and Peter Bandettini
@rosannaolsen.bsky.social @fmri-today.bsky.social
youtu.be/cvPjImt9iv8
The hippocampus, aging, memory and discovery
with Rosanna Olsen and Peter Bandettini
@rosannaolsen.bsky.social @fmri-today.bsky.social
youtu.be/cvPjImt9iv8
Neurosalience #S5E14 with Rosanna Olsen - The hippocampus, aging, memory, and discovery
YouTube video by Organization for Human Brain Mapping
youtu.be
June 19, 2025 at 9:51 AM
A new #Neurosalience episode is out! 🧠
The hippocampus, aging, memory and discovery
with Rosanna Olsen and Peter Bandettini
@rosannaolsen.bsky.social @fmri-today.bsky.social
youtu.be/cvPjImt9iv8
The hippocampus, aging, memory and discovery
with Rosanna Olsen and Peter Bandettini
@rosannaolsen.bsky.social @fmri-today.bsky.social
youtu.be/cvPjImt9iv8
Reposted by Rosanna Olsen
Coming to #OHBM2025 from the mountains of northern Italy, Prof. Alessandro Gozzi (@gozziale.bsky.social) shares his path from pharma to pioneering rodent fMRI, and how preclinical imaging can answer causal questions in neuroscience.
🎤 www.ohbm-com.com/blog/a-conve...
🎤 www.ohbm-com.com/blog/a-conve...
OHBM 2025 Keynote Interview: Alessandro Gozzi
YouTube video by Organization for Human Brain Mapping
youtu.be
June 19, 2025 at 2:06 AM
Coming to #OHBM2025 from the mountains of northern Italy, Prof. Alessandro Gozzi (@gozziale.bsky.social) shares his path from pharma to pioneering rodent fMRI, and how preclinical imaging can answer causal questions in neuroscience.
🎤 www.ohbm-com.com/blog/a-conve...
🎤 www.ohbm-com.com/blog/a-conve...
Thanks @fmri-today.bsky.social for the interview! I really enjoyed sharing my work on your podcast.
Really fun conversation between @rosannaolsen.bsky.social and @fmri-today.bsky.social on the Neurosalience podcast.
open.spotify.com/episode/1EX0...
open.spotify.com/episode/1EX0...
Neurosalience #S5E14 with Rosanna Olsen - The hippocampus, aging, memory, and discovery
OHBM Neurosalience · Episode
open.spotify.com
June 19, 2025 at 3:07 AM
Thanks @fmri-today.bsky.social for the interview! I really enjoyed sharing my work on your podcast.
Reposted by Rosanna Olsen
Excited to present at #OHBM2025 “Sex, Gender, and Brain: From Research To Clinical Practice” Symposium organized by Drs. Hyang Woon Lee & Tonya White
Wed, Jun 25: 9:00 - 10:15 AM
Room: P3 (Plaza Level)
Hope to see you there!
@ohbmofficial.bsky.social @researchtmu.bsky.social
#neurosky
Wed, Jun 25: 9:00 - 10:15 AM
Room: P3 (Plaza Level)
Hope to see you there!
@ohbmofficial.bsky.social @researchtmu.bsky.social
#neurosky
June 18, 2025 at 12:59 AM
Excited to present at #OHBM2025 “Sex, Gender, and Brain: From Research To Clinical Practice” Symposium organized by Drs. Hyang Woon Lee & Tonya White
Wed, Jun 25: 9:00 - 10:15 AM
Room: P3 (Plaza Level)
Hope to see you there!
@ohbmofficial.bsky.social @researchtmu.bsky.social
#neurosky
Wed, Jun 25: 9:00 - 10:15 AM
Room: P3 (Plaza Level)
Hope to see you there!
@ohbmofficial.bsky.social @researchtmu.bsky.social
#neurosky