We will try to show how automata network models can conceptualize and simulate the halo effect in human attitudes faced with a new “offer” which can be weight up according to different formal attributes. From a first presentation of the classical representations of the attitude concept using a cognitivist inspiration, we will propose a connectionist approach based on automata networks. Then, we will show how this kind of models can represent in term of conceptual and formal unification - by integration in the same movement based on the Gestalt and cognitive perspectives, the human attitudes forming process and the halo effect. We based our connexionnist model on the Beckwith & Lehman multiattributes theory and apply it to consumer food product choice.