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Questions and Answers
In the RT version of the task, how does the subject control the viewing duration?
In the RT version of the task, how does the subject control the viewing duration?
- By terminating each trial with an eye movement whenever ready (correct)
- By increasing the number of forced choices
- By adjusting the speed of random-dot motion
- By fixing the viewing duration for each trial
What does the gray patch indicate in Figure 1 (A)?
What does the gray patch indicate in Figure 1 (A)?
- The point of termination for each trial
- The location of the response field (RF) of an LIP neuron (correct)
- The starting point of random-dot motion
- The area with the highest motion strength
How are the trial rasters shown in Figure 1 (C) sorted?
How are the trial rasters shown in Figure 1 (C) sorted?
- By the direction of random-dot motion
- By the number of forced choices
- By the strength of the eye movement response
- By reaction time (RT) (correct)
What is aligned to the beginning of the monkey’s eye movement response in Figure 1 (C)?
What is aligned to the beginning of the monkey’s eye movement response in Figure 1 (C)?
What is shown in Figure 1 (B) as a function of the motion strength?
What is shown in Figure 1 (B) as a function of the motion strength?
Study Notes
Neural Mechanism of Decision Making in Monkey Experiment
- The experiment involves a monkey making decisions based on the direction of motion of random dots.
- The reaction time (RT) version of the task allows the subject to control the viewing duration and make eye movements to indicate decisions.
- The gray patch in the task indicates the location of the response field (RF) of a Lateral Intraparietal area (LIP) neuron.
- Monkey's performance and mean reaction time (RT) are shown to vary with motion strength.
- The response of a single LIP neuron is illustrated for correct choices at two motion strengths (6.4% and 51.2%).
- Spike rasters and response histograms are used to depict the neuron's response aligned with the monkey's eye movement response.
- The trial rasters are sorted by reaction time (RT).
- The average response of LIP neurons during the experiment is shown.
- The figure depicts the neural mechanism of decision making in a monkey during a random-dot motion direction discrimination experiment.
- The experiment involves analyzing the response of LIP neurons to understand the neural basis of decision making in the monkey.
- The monkey's performance and reaction times are correlated with the motion strength in the experiment.
- The experiment provides insights into the neural mechanisms underlying decision making in monkeys.
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Description
Test your knowledge of neural mechanisms in decision-making with this quiz on the monkey random-dot motion direction discrimination experiment. Explore concepts such as reaction time, dynamic random dots, and eye movement in the context of decision-making.
