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perimeter

n. a hemispherical instrument used to plot the limits of the visual field. An individual is seated within the hemisphere and is asked to fixate a central spot of light. The visual field is then probed with small flashes of light, which the participant is asked to detect. The size and brightness of the flashes can be varied to assess visual sensitivity at many points within the field.

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Psychology term of the day

January 3rd 2025

politeness

politeness

n. the process by which a speaker attempts to avoid harm to a listener’s public image or private self-concept through the use of nonthreatening or face-saving forms of speech. Politeness involves steering clear of content or forms of language that might embarrass listeners, make them feel uncomfortable, or lessen their self-respect. It also involves actively using language that maintains or enhances the listener’s dignity, prestige, and autonomy. For example, a speaker might preface the request for a favor by saying, “I’m sorry to bother you, and feel free to say no, but I wonder if you would. . . .” Politeness is one aspect of facework.