1.  But Lapp said there was a psychological component to the proposal.

2.  But there is a strong psychological component to all great pleasures, and Havana cigars retain a powerful mystique.

3.  Current dental training is including more and more psychological components along with other more traditional elements of dentistry.

4.  It is a process, Kaiser maintains, with a strong psychological component.

5.  There may also be a psychological component to wanting the same book over and over.