A client who just received a serious diagnosis immediately begins researching the condition extensively online and reading medical textbooks. This coping behavior is BEST described as:

INTELLECTUALIZATION is a defense mechanism in which a person manages anxiety by focusing on the intellectual, analytical, or factual aspects of a situation, thereby avoiding or delaying the emotional processing of it. DISTINGUISHING FEATURES: The person engages with the reality of the situation (unlike DENIAL, which refuses to accept reality); they focus on facts, data, statistics, treatment options, research; emotional response is minimized or absent in the moment; the energy that would go into grief, fear, or anger goes into analysis instead. IS IT ADAPTIVE?: In the short term, intellectualization can be adaptive — it can help a person take action (research treatment options, find specialists) when they might otherwise be paralyzed by emotion; long-term exclusive intellectualization can delay necessary emotional processing. NURSING APPROACH: Do not abruptly try to redirect the person to emotions they're avoiding; meet them where they are; ask questions that bridge the intellectual and emotional: 'You've done a lot of research — how have you been feeling as you've been reading all of this?'; this respects their coping while gently opening emotional space. CONTRAST: RATIONALIZATION creates logical-sounding excuses to justify behavior; PROJECTION attributes own feelings to others; SUBLIMATION channels impulses into socially constructive activity; INTELLECTUALIZATION specifically uses abstract thinking to avoid the emotional component of a situation.