Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"slow wave activity"”.
-
Small intestine slow wave activity defined through in vivo high-resolution electrical mapping
… these propagating biopotentials are termed slow waves, and they serve a vital role in the regulationand organisation of intestinal motility. Most previous studies of intestinal slow waves utilised low-resolution techniques, where few electrodes were sparsely placed along the intestine. The …
-
Targeted ablation therapy for treatment of gastrointestinal dysrhythmias
Bioelectrical slow waves are one of the main coordination mechanisms of gastric motility. Slow wave dysrhythmias occur in gastric motility disorders, offering a potential therapeutic target. This thesis aimed to investigate the feasibility and safety of using radio-frequency (RF) ablation to …
-
Sleep oscillations and their temporal association in neocortices in mice
… to be reflected by the synchronised cortical activity during non-rapid eye movement (NREM) sleep. This cortical synchronisation is described by slow wave activity (0.5 - 4Hz) and the emergence of spindles (10 - 16 Hz). Slow waves and spindles can be recorded locally in one cortical area or …
-
Bromethalin-based rodenticides: Mode of action, toxicity, clinical effects, and treatment efficacy in rats, dogs, and cats
… EEG changes included: spike and spike-and-wave EEG patterns; high voltage slow wave activity; photoconvulsive or photoparoxysmal irritative responses, and marked voltage depression. Histologic lesions included diffuse white matter spongiosis, mild microgliosis, and optic nerve …
-
Brain states and circuit mechanisms underlying sleep and general anesthesia
… is associated with the abrupt onset of slow oscillations that disrupt cortical networks. I then demonstrate that activation of the thalamic reticular nucleus generates slow wave activity and decreases arousal state, identifying a causal mechanism that generates physiological and …
-
Subjective, behavioural and electrophysiological measurements of the time-course and intensity of sleep inertia after a full night of sleep /
… examine the NlOO and P300 components ofthe ERP waveform. The five-minute oddball task was presented at 15-minute intervals over the initial 90-minutes after awakening to obtain six measures of average RT and amplitude and latency for NlOO and P300. Standard polysomnographic recording were used …
-
Examining Relations among Sleep, Slow Wave Variables, and Next-day Emotional Processing in School-age Children
… micro-architectural features of sleep – namely, slow wave sleep (SWS) and slow wave activity (SWA) – are inversely associated with affective symptoms/disorders both concurrently and longitudinally among youth and adult samples. However, near-term prospective relations between slow wave features …
-
Sonno e funzioni cognitive: ruolo della microstruttura del sonno NREM
… seems to have a role in the involvement of sleep slow wave activity in cognitive processing. Our hypothesis was that an overall CAP rate would have a negative influence on cognitive performance due to excessive fluctuation of the arousal level during NREM sleep. However, we also predicted that CAP …
-
Environmental Enrichment and Nursing Therapy with Comatose Patients : Two Case Studies
… and arterial mean) and pupillary size and reactivity. Biochemical data were also recorded when results of lab tests were available. Final 10-montage EEGs were done on the final day of the study, 14 and 17 days post onset of coma.</p> <p>Because of the contamination of the clinical control …
-
Investigation Into The Relationship Between Intestinal Slow Waves, Spike Bursts, and Motility
… is associated with two bioelectrical events: (i) slow waves generated and propagated by interstitial cells of Cajal, and (ii) spike bursts which are believed to be calcium currents in the smooth muscle cells. The relationship between slow waves, spike bursts, and motility is of critical interest …
-
Keeping Pace with Interstitial Cells of Cajal: Modelling Gastrointestinal Electrophysiology
… of these mechanisms: an intrinsic bioelectrical activity called slow waves, which originates in pacemaker cells called interstitial cells of Cajal (ICC) located within the smooth muscle layers of the GI tract. The mechanism by which ICC generate slow waves is a matter of ongoing research, …
-
On the Screen, In the Mind: An ERP Investigation into the Interaction Between Visuo-Spatial Information and Spatial Language During On-Line Processing
… all prepositional phrases yielded negative slow-wave activity in parietal and occipital sites, while conjunction phrases did not. Because this negativity is modulated by processes involved in the generation and manipulation of spatial imagery, this finding indicates that a similar …