Fixate

[fɪk'seɪt] or ['fɪkset]

(verb.) become fixed (on); 'Her eyes fixated on a point on the horizon'.

(verb.) make fixed, stable or stationary; 'let's fix the picture to the frame'.

(verb.) pay attention to exclusively and obsessively; 'The media are fixating on Princess Diana's death'.

(verb.) attach (oneself) to a person or thing in a neurotic way; 'He fixates on his mother, even at the age of 40'.

海伦娜编辑--From WordNet