Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades texts and topics. Analyze the structure of the relationships among concepts in a text, including relationships among key terms e.
Analyze the author's purpose in providing an explanation, describing a procedure, or discussing an experiment in a text, defining the question the author seeks to address. Translate quantitative or technical information expressed in words in a text into visual form e.
Abstract It is often supposed that the messages sent to the visual cortex by the retinal ganglion cells are encoded by the mean firing rates observed on spike trains generated with a Poisson process. Issue Section:. You do not currently have access to this content. View full article. Sign in Don't already have an account?
Client Account. You could not be signed in. Sign In Reset password. Sign in via your Institution Sign in via your Institution. Buy This Article. Email alerts Article Activity Alert. Latest Issue Alert. View Metrics. Cited By Google Scholar. Books Journals. SpikerBox - You should become familiar with how to use your SpikerBox.
Now that you have successfully witnessed spikes, you are ready to record, quantify, and graphically present electrophysiology data. In this exercise, you will use several methods to record data from your cockroach leg and measure the spikes caused by different stimuli. The method you will use to compare differences in spiking from different stimuli is called rate coding and it is one of the most reliable tools in neuroscience.
On the cockroach, each thorn on the leg is innervated by a neuron: Touching the thorns causes the neurons to fire more spikes. With more force applied to the thorn, more spikes are evoked.
This relationship of spikes to stimulus strength is called "rate coding" and was first discovered in This Rate coding is simply measuring the number of these spikes that occur during a set period of time. However, even though it is simple, rate coding can be used to answer complex questions about how neurons respond to stimuli. This was fir To quantify our results, we will be using a value called the Root-Mean-Square RMS , which is the measurement of the magnitude of a signal over time.
For example, if we take a one second window of recording with no stimulation, we'll have a lower RMS value than if the leg is being stimulated and causing an increased rate of the neuron's firing! The Backyard Brains Spike Recorder program allows you to visualize and save the data on your computer when doing experiments.
0コメント