Skilled Reaching Task
Skilled Reaching Task - Related Videos
08:59
Acquisition of a High-precision Skilled Forelimb Reaching Task in Rats
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Cited by 19 •
2015
A paradigm is presented to analyze the acquisition of a high-precision skilled forelimb reaching task in rats.
06:04
Study Motor Skill Learning by Single-pellet Reaching Tasks in Mice
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Cited by 64 •
2014
Persistent practice improves the precision of coordinated movements. Here we introduce a single-pellet reaching task, which is designed to assess the learning and memory of forelimb skill in...
06:51
Assessing Dexterity with Reaching Tasks
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2023
Reaching tasks are employed in behavioral neuroscience to investigate motor learning and forelimb dexterity. Much like human hands, rodents have dexterous forepaws, which are necessary for executing coordinated and precise motor movements. Experimenters may utilize food rewards to train rodents to reach and for testing their reaching abilities. These tasks help behavioral neuroscientist in understanding how CNS injuries, such as a stroke, may impair reaching ability and dexterity in humans.
12:06
The Structure of Skilled Forelimb Reaching in the Rat: A Movement Rating Scale
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Cited by 54 •
2008
The skilled reaching scale divides the movement by a forelimb in a reach for food act into composite elements each of which are evaluated with a three-point scale. The rating scale is described for a normal rat and can be applied toward evaluating neurological motor disorders.
11:45
Piaget's Conservation Task and the Influence of Task Demands
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2023
Source: Laboratories of Judith Danovitch and Nicholaus Noles—University of Louisville Jean Piaget was a pioneer in the field of developmental psychology, and his theory of cognitive development is one of the most well-known psychological theories. At the heart of Piaget’s theory is the idea that children’s ways of thinking change over the course of childhood. Piaget provided evidence for these changes by comparing how children of different ages responded to questions and problems that he...
FAQs
Performance depends on coordinating several forelimb joints during one precise reach and retrieval. The shoulder, elbow, wrist, and digits must work together to position the limb, grasp the pellet, and bring it back. Examining these linked movements helps distinguish broad motor impairment from difficulty with the dexterity required for accurate food retrieval.
These measures provide complementary views of motor behavior. Success rate summarizes how often the animal completes the retrieval, whereas movement patterns show how the reach is organized. Errors identify unsuccessful or inaccurate attempts. Together, the measures can reveal changes in coordination and dexterity that a single success measure might not capture.
Repeated training makes the task useful for examining motor learning as well as immediate performance. Changes across training sessions can indicate that the animal is acquiring the reaching skill, while persistent or emerging movement changes may reflect altered motor control. This learning dimension supports studies of behavioral change, neural plasticity, and recovery.
The animal is presented with a food pellet positioned so it must reach through a narrow opening to retrieve it. The researcher observes and quantifies the resulting attempts, including successful retrievals, movement patterns, and errors. Repeating the task over training sessions allows performance and learning-related changes to be followed over time.
Researchers can examine how targeted injury changes skilled reaching and then determine whether rehabilitation or a therapeutic intervention alters the observed performance. Success rates, movement patterns, and errors provide behavioral outcomes for these comparisons. Improvement across repeated testing may indicate recovery or treatment-related change, while persistent deficits can show continuing motor impairment.
The task connects observable behavior with precise motor control, making it useful for studying how animals perform and learn dexterous movements. In behavioral neuroscience, researchers apply it to questions about motor control, neural plasticity, and recovery. Its quantified outcomes also help characterize how injury or intervention changes skilled forelimb behavior.