#Note/Permanent #Psychology/Memory/Prospective #Productivity/TaskManagement
Prospective memory[^2] is defined either as remembering to do something at a particular moment in the future or as the timely execution of a previously formed intention. It involves making a mental note to do something later, such as remembering to call a friend on their birthday, pay a bill on time, or take medication at a specific hour. This type of memory is crucial for daily life, enabling us to plan, organize, and execute tasks at the appropriate future moment.
There are two primary types of prospective memories[^1] :
1. **Event-based Prospective Memory**: remembering to perform certain actions when specific circumstances occur. For instance, you might plan to discuss a new project with a colleague the next time you see them. The encounter serves as the trigger for this memory type.
2. **Time-based Prospective Memory**: remembering to perform an action at a particular point in time. For example, knowing you need to take medication at 8 PM each day. The passage of time is the cue here, and it often requires setting external reminders due to its reliance on self-initiated recall.
```mermaid
graph LR
PM[Prospective Memory]
PA[Planned Actions]
Event --cue--> PM
Time --cue--> PM
PM --recall or execute--> PA
```
Studies[^1] suggest that event-based prospective memory typically requires less self-initiated processing than time-based prospective memory. This is because event-based tasks often come with external cues that trigger recall. In contrast, time-based tasks rely heavily on the individual's ability to self-initiate recall at the right moment, often in the absence of clear external cues, making them more effortful and sometimes more prone to failure.
Prospective memory is more than just a cognitive function; it's a fundamental component of our ability to navigate and manage life's demands. By recognizing its role and understanding its mechanisms, we can better organize our lives and move towards our goals with greater assurance.
[^1]: [Effect of age on event-based and time-based prospective memory](https://psycnet.apa.org/record/1997-06412-013)
[^2]: [Prospective Memory-Theory and Applications](https://www.researchgate.net/profile/Lia-Kvavilashvili/publication/239577890_Varieties_of_intention_Some_distinctions_and_classifications/links/575eaca908ae414b8e544315/Varieties-of-intention-Some-distinctions-and-classifications.pdf)