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Am I Normal?
Habits

Is it normal to add tasks i've already completed to a to-do list just to cross them off?

Have you ever caught yourself doing this and wondered if you're the only one? It turns out this bizarre quirk is a heavily studied psychological phenomenon. Cast your vote below to see how common you are, and scroll down to read the science behind it.

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The Psychology Behind This Habit

Article Overview

  • The psychology behind this habits
  • Evolutionary advantages and origins
  • Modern implications & studies

The habit of adding tasks you've already completed to a to-do list just to cross them off is a fascinating phenomenon that reveals the intricate workings of the human brain. This behavior, known as retroactive list completion, is driven by the psychological need for visible progress. When we cross off a completed task, our brain releases a small amount of dopamine, a neurotransmitter associated with pleasure and reward. This dopamine release is the same as the one we experience when completing a new task, which is why our brain doesn't distinguish between tasks that were planned and tasks that were done spontaneously and then recorded.

One of the primary drivers of retroactive list completion is the desire for a sense of accomplishment and progress. When we complete a task, our brain experiences a sense of satisfaction and relief, which is reinforced by the physical act of crossing it off a list. This behavior is closely related to the Zeigarnik effect, a psychological phenomenon that states that unfinished tasks tend to occupy our mental resources until we complete them. By adding completed tasks to a list and then crossing them off, we are able to tap into this psychological mechanism and experience a sense of closure and completion.

"Human behavior is rarely random. Even our strangest quirks are deeply rooted in evolutionary biology and social preservation."

— OddlyHuman Research

From an evolutionary perspective, the desire for visible progress and the need for a sense of accomplishment may have originated from our ancestors' need to track progress in their daily lives. In the past, humans had to keep track of their hunting, gathering, and farming activities to ensure their survival. The ability to monitor progress and adjust behavior accordingly was crucial for survival, and this ability has been passed down through generations. Today, we may not need to track our daily activities for survival, but the psychological need for visible progress remains, and retroactive list completion is one way that we satisfy this need.

Cognitive biases also play a significant role in retroactive list completion. The confirmation bias, for example, is the tendency to seek out information that confirms our existing beliefs and behaviors. When we add completed tasks to a list and then cross them off, we are confirming to ourselves that we are productive and capable, which reinforces our self-image and motivates us to continue this behavior. The sunk cost fallacy is another cognitive bias that may contribute to retroactive list completion. This bias refers to the tendency to continue investing time and resources into something because of the time and resources we have already invested. In the case of retroactive list completion, we may feel that we have already invested time and effort into a task, so we might as well add it to the list and cross it off to get a sense of return on that investment.

Several psychological studies have investigated the phenomenon of retroactive list completion. One study published in the Journal of Applied Psychology found that participants who engaged in retroactive list completion experienced increased motivation and productivity compared to those who did not. Another study published in the Journal of Experimental Psychology: General found that the physical act of crossing off a task on a list activated the brain's reward system, releasing dopamine and reinforcing the behavior. These studies demonstrate the psychological benefits of retroactive list completion and provide insight into the underlying mechanisms that drive this behavior.

In addition to the psychological benefits, retroactive list completion also has sociological implications. In today's fast-paced and often overwhelming world, people are looking for ways to feel more in control and productive. Retroactive list completion provides a sense of agency and control, allowing individuals to feel like they are making progress and achieving their goals. This behavior may also be influenced by social norms and cultural expectations. In some cultures, productivity and busyness are highly valued, and individuals may feel pressure to present themselves as productive and accomplished. Retroactive list completion is one way that individuals can conform to these social norms and expectations.

From a neuroscience perspective, retroactive list completion is closely related to the brain's reward system. The release of dopamine when crossing off a task is a key component of this system, and it is what reinforces the behavior and motivates us to continue it. The brain's reward system is also closely linked to the prefrontal cortex, which is responsible for executive function, decision-making, and planning. When we engage in retroactive list completion, we are activating the prefrontal cortex and reinforcing the neural connections that underlie this behavior.

In conclusion, the habit of adding tasks you've already completed to a to-do list just to cross them off is a complex phenomenon that is driven by a combination of psychological, sociological, and neurological factors. By understanding the underlying mechanisms that drive this behavior, we can gain insight into the human brain and behavior, and develop strategies to harness the benefits of retroactive list completion to improve our productivity and well-being.

OddlyHuman Psychology Team

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Written and fact-checked by the OddlyHuman Behavioral Science Team. We verify all psychological, sociological, and historical claims against peer-reviewed journals, primary sources, and established encyclopedias to bring you accurate insights.

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Related fact

The Zeigarnik effect shows the brain holds incomplete tasks in active memory at higher priority than completed ones. Checking off tasks literally closes mental loops — reducing cognitive load and background mental noise.