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Bottom-Up Processing in Psychology: Examples, Definition & Quiz

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  1. 0:01 Bottom-Up Processing Defined
  2. 0:34 Processing Types Compared
  3. 2:06 Occurrence of Bottom-Up Processing
  4. 3:38 Lesson Summary
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Sarah Collins

In this lesson, you'll learn what bottom-up processing is and review some examples of this decision-making strategy. Then, test your knowledge with a quiz.

Bottom-Up Processing Defined

People are generally encouraged to think before acting; however, you may have found that, sometimes, you make good decisions without thinking about them first. For example, if someone offered you your favorite flavor of ice cream, but it was topped with pickles and hot sauce, chances are you'd be able to turn it down right away without first having to give it a thought (unless you like that sort of thing). The reason you could reject that ice cream without first having to stop and think is because of a strategy called bottom-up processing.

Processing Types Compared

Processing is just a shorter way to say taking in information, analyzing it, and drawing conclusions or taking action. Processing involves the brain, the body, and emotions. There are two types of processing: top-down and bottom-up. Let's look at our ice cream scenario again.

In top-down processing, your brain is active first. You might think, 'How nice. My friend is offering me ice cream, and I would like some. I should take that from her. I wonder what kind it is.' This thought leads to emotions (happy, excited, grateful, curious) and then a response in the body (increased heart rate, smile, arms reaching out).

Bottom-up processing is simply about the process moving in the opposite direction. First comes the response in the body (eyes see the bowl and contents, nose smells chocolate, pickles, and hot sauce, stomach churns, face grimaces, head turns away). This leads to emotion (repulsion, disappointment) and the brain's cognition and directive for action (thinking, 'That's nasty,' and saying, 'No, thank you.'). As you can see from the chart below, bottom-up processing starts with the body and ends in the brain.

Bottom-Up Processing Flow Chart

Occurrence of Bottom-Up Processing

As you can imagine, bottom-up processing can happen very quickly and with many processes all going on at once. Often, the time it takes for the process to start in the body and end with the brain is so fast that it is almost impossible to separate the steps. While we may be more familiar with talking about how we think than our bodily sensations, many would argue that bottom-up processing occurs much more frequently than top-down and that most of our decisions are made because of how our bodies react to the environment.

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