PPA Research Articles - Neuroscience News

Speech-disrupting brain disease reflects patients’ native tongue

Neuroscience NewsJanuary 11, 2020

Language difficulties associated with primary progressive aphasia differ depending on a person's native language, a new study reports. Native English speakers with PPA have more trouble pronouncing words, while those who speak Italian had fewer pronunciation problems but tend to produce shorter and grammatically simpler sentences.... Read More...

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Dementia spreads via connected brain networks

Neuroscience NewsOctober 14, 2019

A new brain mapping study allows for individual predictions of the progression of frontotemporal dementia.... Read More...

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This shows a map of a town square in neuroville

Navigating ‘Neuralville’: Virtual town helps map brain functions

Neuroscience NewsOctober 7, 2019

Combining neuroimaging and a constructed virtual reality town, researchers found the brain uses three different systems to perceive environment. One system allows us to recognize a place, another helps navigate through that location, and the third helps navigate from one place to another. The parahippocampal place area (PPA) helps encode location recognition, while the retrosplenial complex allows for mentally mapping the locations of specific places.... Read More...

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This shows the location of the brain networks

Map of broken brain networks shows why people lose speech in language-based dementia

Neuroscience NewsSeptember 2, 2019

Researchers have identified the location of dysfunctional brain networks that lead to impaired sentence production and word-finding in primary progressive aphasia (PPA). PPA can occur in those with neurodegenerative diseases, such as frontotemporal dementia and Alzheimer's disease. Mapping the networks allows clinicians to apply non-invasive brain stimulation to potentially improve speech in those with PPA. ... Read More...

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Processed foods may hold key to rise in autism

Neuroscience NewsJune 20, 2019

Eating processed food which contains Propionic Acid (PPA) during pregnancy may affect neural stem cell development in the fetal brain. Excessive PPA reduces the number of neurons and over-produces glial cells, causing inflammation. Additionally, PPA shortens neural pathways. The combination of damaged pathways and reduced neurons may be associated with behavioral deficits associated with ASD.... Read More...

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This is a brain scan of someone with PPA

Detecting dementia’s damaging effects before it’s too late

Neuroscience NewsMay 13, 2019

Using MEG neuroimaging, researchers identify abnormalities in functional activity in brain regions which look structurally normal on conventional MRI scans. The findings could help with early detection of primary progressive aphasia.... Read More...

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Room for thought: Brain region that watches for walls identified

Neuroscience NewsMay 13, 2019

MEG neuroimaging implicates the occipital place area (OPA) in our ability to rapidly sense our surroundings. The findings may advance improving machine learning and robotics technology aimed at mimicking visual processes in the human brain.... Read More...

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this is a brain scan from one of the patients in the study

Brain region discovered that only processes spoken, not written words

Neuroscience NewsMarch 21, 2019

A small, preliminary study helps researchers identify a region of the brain that specializes in the processing of auditory words.... Read More...

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The Brain Combats Dementia By Shifting Resources

Neuroscience NewsApril 11, 2018

A new study reveals the brain may reassign tasks to different regions of the brain in order to counter the onset of neurodegenerative diseases. ... Read More...

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