← Back to Research Radar
Scientific Literature Scientific Literature

Oral motor function is associated with pharyngeal residue in isolated parietal lobe stroke after cognitive adjustment

Ji Woong Choi, Seung Hoon Han, Soojin Choi, Si-Bog Park, Mi Jung Kim, Kyu Hoon Lee, Seong‐Ho Jang, Jae Hyeon Park, Jae Woo Kim, Yeo Joon Yun
August 25, 2026
Published Date

Research Abstract & Technology Focus

Abstract Swallowing impairment after parietal lobe stroke remains poorly characterized, and oral hesitation has traditionally been attributed to cognitive dysfunction. We examined the relationship between oral motor function, oral hesitation, and pharyngeal residue in patients with isolated parietal lobe stroke, after adjustment for global cognition, and tested whether these associations differed between hemispheres. In this retrospective study, 204 patients with isolated parietal lobe stroke underwent videofluoroscopic swallowing studies and Clinical Dysphagia Scale (CDS) scoring, with cognition assessed by the Mini-Mental State Examination (MMSE). Partial Spearman correlations adjusting for MMSE were calculated between oral motor components and swallowing outcomes (pharyngeal residue and oral hesitation), with Benjamini–Hochberg false discovery rate (FDR) correction. Hemispheric differences were evaluated using a formal side × predictor interaction test. Chewing and mastication were associated with vallecular residue (ρ = 0.265), pyriform residue (ρ = 0.214), and oral hesitation (liquid ρ = 0.172; semisolid ρ = 0.220), all remaining significant after FDR correction. MMSE was not correlated with oral hesitation, and hesitation prevalence did not differ between cognitively impaired and normal groups. Oral hesitation during semisolid—but not liquid—swallowing was associated with vallecular residue (ρ = 0.157, p = 0.028). The formal side × predictor interaction was non-significant for all outcomes, providing no evidence of hemispheric lateralization. In isolated parietal lobe stroke, impaired chewing is associated with pharyngeal residue and oral hesitation after adjustment for global cognition, consistently across both hemispheres. These findings support multi-consistency swallowing assessment that extends beyond cognitive screening.
Read Full Literature

AI Semantic Synergy Context

Connecting this academic literature to real-world market discussions and products.

openalex.org › research concept
0%

An oral nutritional supplement with TRPM8 agonists as a cooling flavor improved swallowing function in post-stroke patients with oropharyngeal dysphagia

Post-stroke patients with OD (PSOD) show impaired oropharyngeal sensory function, impaired safety during voluntary swallow (VS) and a critical reduction of spontaneous swallowing frequency (SSF), i...

roipad.com › trend story
0%

A brain-computer interface has, for the first time, restored fluent everyday speech to a person who had lost it — a man with ALS who had not spoken aloud in years until a small implant from the BrainGate clinical trial began translating his attempts to speak directly into computer-synthesised words, in a result researchers reported in June 2026

Casey Harrell can now talk for twelve hours at a stretch. Two years ago, he could not talk at all. The ALS he was diagnosed with several years earlier had progressively destroyed the motor neurons ...

roipad.com › trend story
0%

Replay of procedural memory is independent of the hippocampus

Thompson, Rollik and colleagues show that, during sleep, the brain replays procedural memories in the striatum independently of the hippocampus. Replay content was shaped by prior reward and error ...

roipad.com › trend story
0%

A New Implant Aims to Rewire Stroke Patients’ Brains

Epia Neuro’s brain-computer interface will include a motorized glove to help stroke patients recover movement in their hand.

openalex.org › research concept
0%

Multilevel surgical management for severe dysphagia due to lower cranial nerve palsy with multimodal functional assessment: a case report

INTRODUCTION: Lower cranial nerve (LCN) palsy may develop following tumor resection in the cerebellopontine angle or jugular foramen, often resulting in dysphagia and dysphonia. Although many patie...

Frequently Asked Questions (FAQ)

Curated market intelligence mapped to this research.

What is the core focus of the research titled 'Oral motor function is associated with pharyngeal residue in isolated parietal lobe stroke after cognitive adjustment'?

This literature focuses on: Abstract Swallowing impairment after parietal lobe stroke remains poorly characterized, and oral hesitation has traditionally been attributed to cognitive dysfunction. We examined the relationship between oral motor function, oral hesitation, and ...

What other academic literature is closely related to 'Oral motor function is associated with pharyngeal residue in isolated parietal lobe stroke after cognitive adjustment'?

Yes, highly correlated activity was mapped. An entry titled 'An oral nutritional supplement with TRPM8 agonists as a cooling flavor improved swallowing function in post-stroke patients with oropharyngeal dysphagia' discusses this: Post-stroke patients with OD (PSOD) show impaired oropharyngeal sensory function, impaired safety during voluntary swallow (VS) and a critical redu...

Are there commercial applications of 'Oral motor function is associated with pharyngeal residue in isolated parietal lobe stroke after cognitive adjustment' in market news publications?

Yes, highly correlated activity was mapped. An entry titled 'A brain-computer interface has, for the first time, restored fluent everyday speech to a person who had lost it — a man with ALS who had not spoken aloud in years until a small implant from the BrainGate clinical trial began translating his attempts to speak directly into computer-synthesised words, in a result researchers reported in June 2026' discusses this: Casey Harrell can now talk for twelve hours at a stretch. Two years ago, he could not talk at all. The ALS he was diagnosed with several years earl...

Cite this Market Intelligence Report

Reference our AI-mapped synergy between this research and the commercial market to instantly build authority.