In　this　paper,　we　investigate　impulsive　Cohen-Grossberg　networks　with　distributed　delays.　By　Lyapunov-Kravsovskii　functional　and　homeomorphism　theory,　some　new　sufficient　conditions　are　established　for　the　existence　and　global　exponential　stability　of　a　unique　equilibrium　without　strict　conditions　imposed　on　self-regulation　functions.　The　obtained　sufficient　conditions　are　easy　to　verify,　meanwhile　we　remove　the　usual　assumption　that　the　activation　functions　are　bounded　and　our　results　improve　the　previously　known　results.　It　is　believed　that　these　results　are　significant　and　useful　for　the　design　and　applications　of　Cohen-Grossberg　networks.　Copyright　©　2007　John　Wiley　&　Sons,　Ltd.