Patient Controls
Patient Controls - Related Videos
14:52
Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Cited by 58 •
2013
Individuals with intermittent claudication exhibit poor balance compared to healthy controls. Computerized dynamic posturography is an objective method for measuring an individual's postural responses to balance disturbances. This provides an objective reflection of the person’s ability to respond to situations under which sensory stimuli are altered and unexpected perturbations occur.
07:00
Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis
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Cited by 8 •
2016
Cognitive deficits are common in about one third of patients with amyotrophic lateral sclerosis, a neurological condition leading to progressive impairments in speech and movement abilities. To conduct cognitive tests in patients unable to speak or write a reliable and easy to administer eye-tracking paradigm was developed.
03:22
Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
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Cited by 58 •
2018
This paper aims to describe the interfollicular autologous platelet-rich plasma injections (0.20 mL x cm2) in the scalp of 23 patients affected by androgenetic alopecia at a depth of 5 mm using a medical injector gun equipped with a 30 gauge needle, in three sessions.
06:43
Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
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Cited by 6 •
2017
This study presents a novel method to provide efficient patient temperature control for cooling or warming patients. A single use, triple lumen device is placed into the esophagus, analogous to a standard orogastric tube, and connects to existing heat exchange units to perform automatic patient temperature management.
08:45
An Introduction to Motor Control
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2023
Motor control involves integration and processing of sensory information by our nervous system, followed by a response through our skeletal system to perform a voluntary or involuntary action. It is vital to understand how our neuroskeletal system controls motor behavior in order to evaluate injuries pertaining to general movement, reflexes, and coordination. An improved understanding of motor control will help behavioral neuroscientists in developing useful tools to treat motor disorders, such...
FAQs
They provide a comparison point for influences that may accompany being ill without defining the target disorder. If the target patient group differs from patient controls on a symptom measure or behavioral task, the contrast can help researchers judge whether the result is more closely related to the disorder under investigation rather than to clinical distress, treatment, or healthcare contact.
Selection should focus on participants who have a clinical condition while lacking the disorder or characteristic being studied. This design helps account for experiences shared across clinical groups, including illness, treatment, and contact with healthcare. Those shared influences are important because they could otherwise be mistaken for effects specific to the target disorder.
Patient controls sharpen interpretation by testing whether an observed difference tracks the target disorder or reflects broader clinical circumstances. In cognitive and behavioral studies, this comparison can clarify whether performance patterns or symptom differences are disorder-specific. The resulting contrast supports more precise conclusions about psychological mechanisms instead of attributing every group difference to the target diagnosis.
Researchers select the comparison participants and assess them with diagnostic interviews, symptom measures, or behavioral tasks. These assessments establish that the participants have a clinical condition but not the disorder or characteristic under investigation, while also producing data that can be compared directly with the target patient group. The chosen assessment depends on the study’s clinical, cognitive, or behavioral focus.
They are relevant to clinical, cognitive, and behavioral psychology research. A study may use them when it needs to determine whether results reflect the target disorder or influences shared by illness, treatment, or healthcare contact. They can therefore contribute to experiments examining psychological mechanisms as well as studies evaluating how treatment outcomes should be interpreted.
An observed difference should be considered in relation to the comparison design and the measures used. A difference between the groups may support a disorder-specific interpretation, whereas similarity may indicate that the measured effect is shared across clinical conditions or linked to treatment or healthcare contact. This comparison improves the precision of conclusions about mechanisms and outcomes.