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The Use and Abuse of Principal Component Analysis (PCA) in Aphasia Research

By Grant Walker A college introductory calculus professor once revealed to our class that, despite the public perception, mathematicians are often the laziest people around. The reason that [...]

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Aphasia Therapy Research: Breakthroughs Wanted

If you read my previous posts on the ChitChat blog, you’ll have noticed that I am a big advocate of aphasia therapy. Being an advocate of aphasia therapy may seem like an odd thing in this day [...]

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Reporting From the Land of COVID-19 Aphasia

By Audrey Holland I am a foreign correspondent, writing to my home country from a country I have never visited be-fore. I am visiting the land of COVID-19 Aphasia. The field that I report on is [...]

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Gabby Giffords and the Lack of Access to Aphasia Therapy

I rarely watch anything on TV anymore that truly moves me. This week was an exception: The video of Gabby Giffords during the Democratic National Convention was such an inspiring and uplifting [...]

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The Neurobiology of Syntax: A follow-up Discussion Regarding Peter Hagoort’s C-STAR Lecture

By: Peter Hagoort, William Matchin, Greg Hickok, Natalia Levshina, & Dirk den Ouden Introduction On March 25 of this year (2020) I presented my on-line lecture “Beyond the language given: [...]

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From Electronic Toys to Speech Production

My passion for understanding the mechanisms of how things work and why they break down started from the early childhood years. My generation grew up with the advent of electronic technologies, [...]

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In the defense of ‘naming’ as an outcome measure in aphasia therapy studies

“Driving into work this morning I set a new personal record: I was able to name 324 items that I saw on my way…” said no one, ever. Naming things out loud seems like a bizarre activity and not [...]

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Aphasia Therapy Doesn’t Work

I was very fortunate to be the last student to start PhD study with Audrey Holland (University of Arizona). One of the many benefits of studying under Audrey’s tutelage is that she was very [...]

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Aphasia treatment outcome measures – some are worse than others

One would hope that anyone who has been involved with aphasia treatment studies has at some point struggled with the question of what primary outcome measure to use. If they have not, I would [...]