In an experiment, researchers find that certain neurons in the visual cortex preferentially fire in response to a bar of light that is oriented at a specific angle, and that different neurons similarly respond to bars of light oriented at different angles. This finding provides the strongest evidence for:A.feature detection.B.parallel processing.C.spreading activation.D.sensory adaptation.
Question
In an experiment, researchers find that certain neurons in the visual cortex preferentially fire in response to a bar of light that is oriented at a specific angle, and that different neurons similarly respond to bars of light oriented at different angles. This finding provides the strongest evidence for:A.feature detection.B.parallel processing.C.spreading activation.D.sensory adaptation.
Solution
The finding described in the question provides the strongest evidence for A. feature detection.
Here's why:
Feature detection is a process in which the brain interprets specific elements of visuals, such as lines, edges, or movement. In this case, the neurons in the visual cortex are responding to a specific feature of the visual input, which is the orientation of the bar of light. Different neurons respond to different orientations, suggesting that they are specialized for detecting this specific feature.
Parallel processing, on the other hand, refers to the ability of the brain to process multiple types of information at the same time. While this is a crucial aspect of visual perception, the experiment described does not provide specific evidence for this process.
Spreading activation is a theory related to semantic memory, where one memory triggering another related memory. This is not related to the visual perception process described in the question.
Sensory adaptation refers to the process by which our sensitivity to a stimulus decreases over time as we are exposed to it. The experiment described does not provide evidence for this process, as it does not involve prolonged exposure to a stimulus.
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