Sensorimotor Deficits
Sensorimotor Deficits - Related Videos
07:54
Detecting Behavioral Deficits in Rats After Traumatic Brain Injury
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Cited by 56 •
2018
The goal of the behavioral tests presented here is to detect functional deficits in rats after traumatic brain injury. Four specific tests are presented that detect deficits in behaviors to reflect the damage to specific brain areas at times extending to one year after injury.
10:32
Assessment of Sensorimotor Function in Mouse Models of Parkinson's Disease
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Cited by 171 •
2013
In Parkinson's disease and movement disorders in general, sensitive and reliable behavioral assays are essential for testing novel potential therapeutics. Here, we describe a manageable battery of sensorimotor tests for mice that are sensitive to varying degrees of injury to the nigrostriatal system and useful for preclinical studies.
08:10
Reproducible Motor Deficit Following Aortic Occlusion in a Rat Model Of Spinal Cord Ischemia
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Cited by 4 •
2017
This study demonstrates the technique to make a minimally invasive and easily reproducible model of spinal cord ischemia in rats. Various degrees of hind limb motor deficit can be produced by controlling the aortic occlusion time.
01:29
Sensorimotor Stage I: Substages 1 to 3
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2026
Piaget’s theory describes cognitive development as a sequence of stages. The first is the sensorimotor stage, which extends from birth to approximately two years. During this period, infants gain knowledge mainly through sensory experiences and motor actions. Over time, behavior progresses from automatic reflexes toward increasingly intentional and goal-oriented actions. The first three substages show the early part of this transition.Substage 1: Reflexive SchemesReflexive schemes span the...
01:27
Sensorimotor Stage II: Substages 4 to 6
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2026
Piaget’s sensorimotor stage describes cognitive development from birth to approximately two years. During this stage, infants progress from reflexive behavior toward intentional action and early symbolic thought. Substages four through six show major advances in problem-solving, experimentation, and mental representation.Substage 4: Coordination of Secondary Circular ReactionsFrom approximately 8 to 12 months, infants begin coordinating previously learned behaviors to achieve specific goals.
FAQs
Sensorimotor deficits can reflect disruption at several linked levels, from sensory receptors and spinal cord pathways to brain regions and muscles. A problem in sensing a stimulus may alter the information available for action planning, whereas impaired transmission or motor control can affect the response after perception occurs. Tracing these links helps researchers connect observable movement problems with nervous-system dysfunction.
These findings can arise from different failures within the same sensory-motor network. Reduced sensation suggests inaccurate incoming information, while weakness points to impaired motor output; poor coordination may reflect difficulty integrating information for controlled action. Considering the pattern together is therefore more informative than treating each symptom as an isolated problem when characterizing nervous-system dysfunction.
Reflex testing provides a structured way to examine a response within the nervous system, while sensory checks reveal whether stimuli are detected accurately. Gait observation and targeted movements add information about balance, strength, and coordination. Together, these measures can help distinguish patterns of dysfunction and create comparable outcomes for follow-up.
A clinical assessment may combine reflex testing, sensory examination, gait observation, and targeted movements. The examiner can compare how a person detects stimuli, maintains balance, and performs selected actions. Recording these responses creates measurable findings that support diagnosis and allow researchers or clinicians to track changes during recovery or rehabilitation.
The results can show whether deficits affect sensation, motor strength, reaction speed, balance, or coordination. This profile helps characterize the affected function and may assist with localizing dysfunction within the nervous system. Repeated assessments provide measurable comparisons, making them useful for evaluating recovery and rehabilitation strategies.
Within neuroscience, sensorimotor deficits provide a way to study how sensory and motor pathways contribute to behavior. Investigators can examine patterns associated with stroke or neurodegenerative disease, then use clinical measures to characterize dysfunction and evaluate rehabilitation strategies. This connects nervous-system mechanisms with observable changes in movement and sensation.