Neural Stimuli
Neural Stimuli - Related Videos
12:12
Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm
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Cited by 4 •
2014
The distractor-response binding paradigm is described. It can be used to shed light on the influence irrelevant stimuli, competing with targets for a response, can have on human action. Both response retrieval effects and distractor inhibition effects can be analyzed within the paradigm.
10:32
Enumeration of Neural Stem Cells Using Clonal Assays
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Cited by 5 •
2016
Neural stem cells (NSCs) refer to cells which can self-renew and differentiate into the three neural lineages. Here, we describe a protocol to determine NSC frequency in a given cell population using neurosphere formation and differentiation under clonal conditions.
26:43
Computer-Generated Animal Model Stimuli
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Cited by 8 •
2007
Computer-generated stimuli using the Jacky dragon as a model.
09:48
Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array
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Cited by 2 •
2015
We have developed an in vitro unfolded hippocampus which preserves CA1-CA3 array of neurons. Combined with the penetrating micro-electrode array, neural activity can be monitored in both the longitudinal and transverse orientations. This method provides advantages over hippocampal slice preparations as the propagation in the entire hippocampus can be recorded simultaneously.
12:48
Isolation and Culture of Neural Crest Cells from Embryonic Murine Neural Tube
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Cited by 26 •
2012
Isolation of embryonic neural crest from the neural tube facilitates the use of in vitro methods for studying migration, self-renewal, and multipotency of neural crest.
FAQs
The key transition occurs at threshold. A stimulus first produces an electrical change in the receptor or neuronal membrane. If that change reaches the required threshold, an action potential is generated and travels along the neuron. This threshold step converts a local environmental or internal change into a signal capable of downstream neural communication.
Pressure, light, temperature, and chemical signals produce distinct forms of sensory input, but each must be converted into an electrical membrane change before neural signaling proceeds. This receptor conversion links the physical or chemical event to the nervous system, enabling organisms to distinguish conditions in the external environment from changes occurring inside the body.
After an action potential travels along a neuron, the signal reaches a synapse, the site of communication between neural cells. Synaptic transmission carries the information onward so neural circuits can coordinate sensation, reflexes, movement, or behavior. Thus, detecting a stimulus is only the first stage; effective responses also depend on successful signal transfer.
An investigation can follow a stimulus through a sequence of stages: identify the physical or chemical change, examine receptor or membrane activation, determine whether threshold is reached, and track action-potential travel and synaptic communication. Comparing these stages helps connect stimulus detection with the resulting sensory or behavioral response without treating the initial stimulus as the complete explanation.
Neural stimuli research provides a framework for studying sensation, reflexes, movement, and behavioral responses. Researchers can relate a particular condition, such as pressure or temperature, to receptor activation and subsequent neural communication. This broader view also supports investigation of sensory processing and how neural circuits organize responses.
When signal detection or transmission is disrupted, effects can be examined at different points in the pathway: receptor conversion, membrane activation, action-potential travel, or synaptic communication. This organization helps biology research distinguish whether a disorder affects sensing the stimulus or carrying the signal onward, clarifying how neural dysfunction may alter sensation or response.