absorbed attention, absorption, abstraction, abulia, alienation, anxiety, anxiety equivalent, anxiety state, apathy, application, bedevilment, bewitchery, bewitchment, captivation, catatonic stupor, complex, compulsion, concentration, contemplation, conviction, deep study, deep thought, dejection, depression, detachment, elation, emotionalism, enchantment, engagement, engrossment, entrancement, euphoria, fascination, fixation, fixed idea, folie du doute, hang-up, hypercathexis, hypochondria, hysteria, hysterics, idee fixe, illusion, immersion, indifference, insensibility, intentness, involvement, irresistible impulse, lethargy, mania, maya, meditation, melancholia, mental distress, monomania, morbid drive, obsessive compulsion, passion, pathological indecisiveness, phobia, possession, preoccupation, prepossession, profound thought, psychalgia, psychomotor disturbance, rapt attention, ruling passion, single-mindedness, spirit control, studiousness, study, stupor, submersion, thing, tic, twitching, unresponsiveness, witchery, withdrawal