This can even be scientifically counter-productive as the psychologist, Stephen Walker, warns:

These are but a few of the propaganda devices that psychologists are warning about in anticipation of an advertising blitz in the last days of this year's election campaigns.

But a Rochester Institute of Technology industrial psychologist, Andrew DuBrin, warns that parties are full of pitfalls.

As cartoon makers push the limits to find new ways to entice children to their programs, doctors and psychologists warn that this episode is a stunning reminder of how vulnerable children can be to certain contemporary television shows.

"A psychologist, Aric Sigman, warned of the perils of "passive parenting" and "benign neglect" caused by parent's reliance on gadgets".

At least one psychologist warned that Survive This risked being exploitative and might damage the mental health of the participants.

The medical team's psychologist, Alberto Iturra, warned that the miners were exhausted, "When that happens, your sensitivity rises to the maximum at the same time as your tolerance falls to almost nothing" he stated.

The psychologists back home had warned about this kind of thing, for exactly these reasons.

Some psychologists have warned that impact of the transition may send people into a kind of economic hibernation.

Still in the 1950s, some educational psychologists warned parents not to let their children daydream, for fear that the children may be sucked into "neurosis and even psychosis".