Glossary I

Illness refers to the presence of a physical or mental disease or impairment ; the experiences associated with disease that ultimately affect the person’s overall state of being and social functioning: Illness is highly individual in that a person may have a serious disease but experience no feelings of pain or suffering and hence there seems to be no illness; conversely, a person may be extremely ill, as with a somatization disorder, but have no evidence of disease that can be measured by pathological changes in the body.

Illness behavior refer to those activities undertaken by people who feel ill and who wish to discover their state of health , as well as suitable remedies. Illness behavior precedes formal diagnosis . Moreover, Illness behaviors are varying ways individuals respond to physiological symptoms, monitor internal states, define and interpret symptoms, make attributions , take remedial actions , and utilize various forms of informal and formal care.

Illness delay refers to the time between recognizing that a symptom implies an illness and the decision to seek treatment .

Illness representations (schemas) refer to an organized set of beliefs about an illness or a type of illness that include its nature, cause, duration, and consequences. .

Illocutionary force refers to the action that is performed by a speaker in uttering a sentence as stated in Speech act theory,

Illogical thought refers to a thought that is intuitive, haphazard, or irrational.

Illumination refers to an intermediate stage in problem solving in which the individual gains insight or discovers a potential solution to a problem
Illumination edge is defined as the border between two (2) areas created by different light intensities in the two (2) areas.

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