Sally feels lost in a crowd at a rock concert and is experiencing deindividuation. this means sally is

Sally is "less self-aware, less concerned with others' evaluations, and less inhibited".

In social psychology Deindividuation refers to the idea that is for the most part thought of as the loss of self-awareness in gatherings like Sally in the given example. Sociologists additionally consider the phenomenon of deindividuation, yet the level of examination is to some degree different.