You Suddenly Get an Uncontrollable Urge to Find Out More

question 22

Multiple Choice

You suddenly get an uncontrollable urge to find out more about the other side of the Milky Way Galaxy (the regions beyond the center) . Where should you rush off to?

• A) the control room of the Hubble Space Telescope at NASA
• B) a radio telescope that can observe at 21-cm wavelengths
• C) the control room of the Compton Gamma-Ray Observatory
• D) a gold mine near Lead, South Dakota
• E) the same factory that makes Snickers candy bars

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Definitions:

Receptive Field

The particular region in the field of vision that triggers a response from a neuron or a network of neurons.

Visual Cortex

The region within the occipital lobe of the brain responsible for processing information related to sight.

Sensitivity

A quality or condition of being sensitive; the ability to perceive, respond to, and measure changes in external or internal conditions.

Centre-surround

A term most often used in neuroscience that describes how certain neurons in the visual system are organized to respond differentially to light in the center of their receptive field compared to the surround area.