Give examples of bottom-up and top-down processing from your everyday life
Is the following an example of Bottom-up vs. Top-down processing?
I have never fixed anything under the hood of my car. I decided to open the hood and look any way. All I see is a lot of nuts and bolts and hoses, etc. I can only learn what to do if someone teaches me. I'm faced with bottom-up processing. (I have no preconceived idea as to what I am going to do.)
Once an expert mechanic teaches me what everything is and how it functions, I have an idea as to what I'm facing and I use this knowledge for future problems. I have some background knowledge to draw from. This is called Top-down processing.
Answers
Once an expert mechanic teaches me what everything is and how it functions, I have an idea as to what I'm facing and I use this knowledge for future problems. I have some background knowledge to draw from. This is called Top-down processing.
There are 2 general processes involved in perception and sensation. Bottom-up processing is the processing sensory information as it is coming in. Top-down processing refers to perception which is driven by cognition
Explanation:
Example of Bottom- up Processing
The blind taste challenge is an instance of bottom-up processing since it is based on being exposed to a stimulus, then analysing it later. When the chef eat the food, the blindfolds and headphones prevents any interfere externally. The taste receptors of the chefs are the only receptors that function at the time of the challenge. The food taste is analyzed by the gustatory cortex, and the chef are asked which food are they tasting. Using a bottom-up processing, the chef will taste the food and decide from their memory what food they ate.
Example of Top-Down Processing
Sitting in a typical classroom is an instance of top-down processing. You are not only watching your professor writing notes and listening to his/her lecture, you will also filter many of the sensory information so as to concentrate on the task: the smell of pizza carried in by your friend, the chatter in the outside corridor, the spectacular lights in the back room, the sound of a person clicking again and again his pen behind you; Your brain then has to assess, based on top-down processing how much of this sensory data it has to handle at every moment to function at its optimum.