External trigger psychology is the study of how outside factors can impact our thoughts, emotions, and behavior. This can include things like the media, our environment, and even other people. Our psychological response to these triggers can be positive or negative, and it can affect our mental and physical health.

Did you know this:

Whenever you are watching a commercial for a new car that they really want. The commercial acts as the trigger, and the person then feels the urge to go out and buy the car.

The notification is the external trigger girl received to check balance or even spend money.