Secondary Memory

Medically reviewed by Paige Henry, LMSW, J.D. and Andrea Brant, LMHC
Updated October 11, 2024by BetterHelp Editorial Team

Memory plays a crucial role in shaping our understanding of the world. Secondary memory in particular is an important part of how we process events and make decisions about the future. However, secondary memories are not without limitations, such as bias, distortion, and the influence of emotions. Read on to learn more about the role that secondary memory plays in shaping our perceptions, how these memories are formed and stored, and their limitations. We’ll also discuss strategies for enhancing secondary memory and improving the accuracy and reliability of our memories.

iStock/FatCamera
Take a step towards a clearer understanding of your experiences.

What is secondary memory?

Secondary memory refers to memories that are stored in our brains for extended periods. Unlike primary or short-term memories, often referred to as volatile memory, which may only last a few seconds, secondary memories can be retained for days, weeks, months, or years. This type can allow us to recall past experiences, store knowledge, and retain skills. It can be further broken down into three subcategories: 

  • Semantic memory, which refers to our knowledge of facts and concepts, such as the meanings of words and knowledge about the world
  • Episodic memories, which are of specific events or experiences in context, such as remembering a time when you felt joyful and also recalling where you were and what you were doing when you felt that way
  • Procedural memory, which is the ability to remember how to do things we learned previously, like playing the piano or driving a car

The mechanics of secondary memory

You may view secondary memory as analogous to a computer's secondary storage devices, like the hard disk or solid state drive. If we view the CPU as our brain, the primary memory of our brain is closer to a computer's RAM with its short-term memory, also known as the working memory, whereas secondary memory devices are more like the hard drive, storing long-term data that the user may connect at any time. A secondary storage device is permanent, and can be recalled, much like our secondary memory. 

Secondary memories are formed through the process of consolidation, which involves transferring information from short-term to long-term memory. This process occurs over time, and can be influenced by factors like repetition, emotion, and attention. Once the information is consolidated, the brain's storage capacity allows the information to be stored in multiple regions, including the hippocampus, the amygdala, and the neocortex. Typically, the hippocampus encodes information and data, while the amygdala processes related emotions and assigns emotional significance to the memory. The neocortex is involved in storing and retrieving information later.

Getty/AnnaStills

How we use secondary memory

Our secondary memory is instrumental in shaping our understanding of the world. It allows us to construct a mental representation of reality that’s shaped by our past experiences, beliefs, and values. This mental representation becomes the lens through which we view and interpret new information and experiences.

Our secondary memory also influences our beliefs, attitudes, and biases. For instance, if an individual has had positive past experiences with dogs, they’re more likely to have a positive perception of dogs in the future. If they had a bad past experience with a dog, however, they’re likely to apply the emotions they felt—such as fear—to future experiences with dogs. If they have additional interactions that are negative, those will typically serve to further reinforce their preexisting attitudes.

How secondary memory can impact emotions and behaviors

Our secondary memory not only shapes our perception of the world but can also profoundly impact our emotions and behaviors. One reason is that emotional experiences tend to leave a lasting impression on our secondary memory. This might be because the amygdala, which processes emotions, is closely linked to the hippocampus, which encodes and decodes information. As a result, emotional experiences are likely to be stored in our secondary memory more vividly than neutral experiences. 

This might be why we often react strongly to a number of events associated with past emotional experiences. For example, if you’ve had positive experiences with public speaking, you may approach and engage in it confidently in the future. On the other hand, if you’ve had past experiences with public speaking where you felt anxious, nervous, stressed, or embarrassed, you’re likely to instinctively avoid it or behave nervously when presenting in front of others because of these strong memories.

The limitations of secondary memory

Secondary memory is a valuable tool, but it has limitations. One of the most significant is its subjectivity to bias and distortion. Over time, memories may become distorted, altered, or even completely fabricated. This could result in false or inaccurate memories that could significantly impact our beliefs, attitudes, and behaviors. For instance, if you come to vividly remember an event that never actually occurred, or remember an event very differently from how it actually happened, you might act on that version of the memory as if it were true. Misunderstandings, miscommunications, and poor decisions based on false information could result.

Another limitation of secondary memory is its susceptibility to emotions and biases. Our emotions can color how we perceive and remember events, and our biases can influence how we interpret and recall information. Over-relying on these past perceptions could result in a skewed view of new situations and could more easily allow us to reinforce negative attitudes and beliefs.

What happens when we over-rely on secondary memories

Only trusting and relying on our own secondary memories can be limiting. If we take every memory as a strict, detailed fact and ignore other inputs, we may be prone to developing a distorted worldview that can make our lives more difficult.

That’s why acknowledging the limitations of our own secondary memories and being open to other information sources can be helpful for developing a healthy, balanced perspective on ourselves, our past, and the world. Other risks of overreliance on our own secondary memories may include:

  • Increased stress and anxiety. Relying too heavily on our own secondary memories may cause us to experience stress and anxiety when these memories are challenged. It may also make it hard for us to process new situations that offer input that conflicts with what we remember or our preexisting judgments.
  • Reduced flexibility and adaptability. Over-reliance on secondary memory might also make us overly attached to our past experiences and beliefs. As a result, we could become less flexible and adaptable, making it difficult for us to embrace new perspectives and learn from new experiences.
  • Reinforcement of negative beliefs and attitudes. If negative experiences and beliefs dominate our secondary memory, we may become stuck in a cycle of negative thinking that reinforces these attitudes. Feelings of hopelessness and helplessness that negatively impact our well-being could be the result.
  • Inaccurate or false memories. Over-reliance on secondary memory could also increase our risk of creating inaccurate or false memories. As time passes, the way we recall events may become distorted or altered, which can lead to misunderstandings and miscommunications.
Getty/AnnaStills
Take a step towards a clearer understanding of your experiences.

Tips for cultivating a strong, balanced secondary memory

If you’re looking to enhance your secondary memory and improve memory accuracy, there are some strategies you can try. First, you might simply make it a practice to focus on the details of an experience as it’s happening. Engaging in a regular mindfulness practice may help you develop the awareness and presence to be able to do this more easily. Journaling about your experiences shortly after they happen can also help you retain details more accurately.

To help keep a balanced perspective rather than letting the emotion of past experiences wholly dictate how you approach new situations, simply developing an awareness of this human tendency may be key. If you notice yourself forming emotional pre-judgments about a person or situation, you might benefit from stepping back and trying to take a more objective view. Experiencing new things with a more open mind and being willing to entertain other perspectives can help you avoid limiting yourself based on subjective memories.

How therapy can help

Therapy can be a valuable tool for addressing the natural limitations of secondary memory. A therapist can offer you a safe, open space where you can process and reflect on past experiences. They can also help you learn to recognize when these experiences may be influencing new situations you encounter so you can avoid limiting yourself in this way. If an over-reliance on your own subjective secondary memories has caused you to get stuck in a cycle of negative thinking, they may also assist you in learning to break the pattern and develop healthier modes of thought.

In most cases, people who are interested in seeking therapy can choose from either online or in-person sessions. Research suggests that both can offer similar benefits, so you can typically choose the one that feels right for you. Some people prefer online therapy because of its relative convenience and affordability. With a virtual therapy platform like BetterHelp, for instance, you can get matched with a licensed therapist who you can meet with via phone, video call, and/or in-app messaging from the comfort of home, or anywhere you have an internet connection. 

Takeaway

Secondary memory is a key component of how we store data and make sense of the world. However, relying on it too heavily can cause us to have a limited or distorted view of new situations. Therapy may be one way to build a more balanced, healthy perspective.
Improve your memory with professional support
The information on this page is not intended to be a substitution for diagnosis, treatment, or informed professional advice. You should not take any action or avoid taking any action without consulting with a qualified mental health professional. For more information, please read our terms of use.
Get the support you need from one of our therapistsGet started