I was wondering about a rather remarkable phenomenon regarding how we recollect reminders. I've read stories where people keep a pillow, or even figures and dolls, near their door to make them remember specific tasks. And they do, upon seeing that object. How does our brain remember those reminders?
I searched online about this and found a lot of tips (like the above - dolls, pillows, etc) rather than explanations. I'm not sure if it has to do with memory (or how it even works) which is why I'm asking here. Thanks!