5 research outputs found
Computational analyses in cognitive neuroscience: in defense of biological implausibility
No full textBecause cognitive neuroscience researchers attempt to understand the human mind by bridging behavior and brain, they expect computational analyses to be biologically plausible. In this paper, biologically implausible computational analyses are shown to have critical and essential roles in the various stages and domains of cognitive neuroscience research. Specifically, biologically implausible computational analyses can contribute to (1) understanding and characterizing the problem that is being studied, (2) examining the availability of information and its representation, and (3) evaluating and understanding the neuronal solution. In the context of the distinct types of contributions made by certain computational analyses, the biological plausibility of those analyses is altogether irrelevant. These biologically implausible models are nevertheless relevant and important for biologically driven research
Effects of physical therapy on workers' compensation claim outcomes in three common diagnoses
No full textTitle from PDF title page (viewed on January 4, 2018).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (page 18).Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Direction biasing by brief apparent motion stimuli
No full textAbstractThe perceived direction of a motion step (probe stimulus) can be influenced by an earlier motion step or a brief motion sweep containing a series of steps (biasing stimulus). Depending upon experimental conditions, the biasing of the direction of the probe step (a phase shift of 180°±Φ) by a biasing stimulus which precedes it by approximately 250 ms can either increase (positive filter biasing) or decrease (negative filter biasing) the tendency to see the probe move in the biasing direction as computed with a motion filter with a biphasic temporal impulse response. In a series of experiments it was found that biasing motions traversing 90° of phase angle in fewer than six steps in less than 100 ms produced positive filter biasing. Also, biasing of the probe direction could be dissociated from the consciously reported direction of the biasing stimulus, and it did not occur when the probe preceded rather than followed the biasing stimulus. A biasing sweep containing more than six steps traversing 90° or a sweep traversing 270° produced negative filter biasing. Perceptual fusion of the steps of the sweep was not a necessary condition for obtaining negative filter biasing. In general, the negative filter biasing effects were found to be the most pervasive for the conditions investigated, and they are suggestive of a direction-specific, adaptation-like (gain-control) process in first-order motion filters. The exception to the negative biasing rule was found only with biasing stimuli which were short in duration or distance spanned
Holistic Care Clinic for People with Parkinson’s Disease: Outcome from a Newly Developed Service
No full textData Availability Statement:
The data presented in this study are available on request from the corresponding author due to ethical restrictions.Supplementary Materials:
The following supporting information can be downloaded at: https://www.mdpi.com/article/10.3390/brainsci16010043/s1. Table S1: Sustainability and Reproducibility Measures of the Holistic Care Clinic Model.Background/Objectives: Non-motor symptoms (NMS) in Parkinson’s disease (PD), particularly neuropsychiatric disturbances such as anxiety, significantly impact quality of life. The Holistic Care Clinic for Parkinson’s disease at St George’s Hospital offers multidisciplinary assessments and personalized care to address both motor and non-motor symptoms, aiming to improve patient well-being and empower patients to manage their health and enhance their quality of life. This study evaluated the effectiveness of a holistic management approach for PD patients with prominent non-motor symptoms, particularly neuropsychiatric issues, by analyzing clinical outcomes and patient feedback. Methods: A retrospective analysis was conducted on patients referred to the clinic between June 2022 and June 2023 for non-motor symptoms. Patients received comprehensive assessments, including clinical exams and interviews focused on neuropsychiatric symptoms, followed by individualized care plans. Interventions for anxiety included online psychoeducation and cardiac biofeedback. Outcomes were assessed using the Clinical Global Impression (CGI) scale and patient feedback on interventions. Results: Thirty patients (mean age 65.7 years, mean disease duration 7.8 years) were included. Anxiety was the primary referral reason (66%). CGI scores indicated that 62% of patients experienced improvement. Medications were adjusted in 14 patients and 65% improved. For anxiety, 13 patients attended the psychoeducation session, with 91% rating it “very likely”/”likely” to recommend. Ten patients completed cardiac biofeedback training, showing a significant reduction in Parkinson’s Anxiety Scale scores (p = 0.03), and 90% recommending it. Conclusions: The holistic care approach of PD patients resulted in significant improvements in clinical outcomes. Patient feedback indicates high satisfaction with the interventions, supporting their acceptability and overall satisfaction with the interventions.This research received no external funding
Modulation of immune responses by targeting CD169/Siglec-1 with the glycan ligand
No full textCell surface mucins configure the cell surface by presenting extended protein backbones that are heavily O-glycosylated. The glycopeptide structures establish physicochemical properties at the cell surface that enable and block the formation of biologically important molecular complexes. Some mucins, such as MUC1, associate with receptor tyrosine kinases and other cell surface receptors, and engage in signal transduction in order to communicate information regarding conditions at the cell surface to the nucleus. In that context, the MUC1 cytoplasmic tail (MUC1CT) receives phosphorylation signals from receptor tyrosine kinases and serine/threonine kinases, which enables its association with different signaling complexes that conduct these signals to the nucleus and perhaps other subcellular organelles. We have detected the MUC1CT at promoters of over 500 genes, in association with several different transcription factors, and have shown that promoter occupancy can vary under different growth factor conditions. However, the full biochemical nature of the nuclear forms of MUC1 and its function at these promoter regions remain undefined. I will present evidence that nuclear forms of the MUC1CT include extracellular and cytoplasmic tail domains. In addition, I will discuss evidence for a hypothesis that the MUC1CT possesses a novel catalytic function that enables remodeling of the transcription factor occupancy of promoters, and thereby engages in regulation of gene expression
