If someone asked what you had for breakfast, you might imagine maple syrup drizzled on a stack of pancakes or the satisfying crunch of granola topped with fruit. Perhaps you remember these details because breakfast wasn’t that long ago, or you tend to eat these foods regularly. For people with hyperphantasia, recollections of breakfasts from months or even years ago can be so vivid that it’s almost like having actual pancakes right in front of them.
While you may have heard of synesthesia—a neurological condition that stimulates the five senses—chances are you’re less familiar with hyperphantasia. According to a 2024 review, roughly three percent of the world’s population has hyperphantasia, which is the “condition of having an extremely vivid and intense imagination,” says psychologist Hayley Nelson, PhD, associate professor of psychology at Delaware County Community College and founder of The Academy of Cognitive and Behavioral Neuroscience.
At this point, you might be wondering if you have hyperphantasia. Here, we asked neuroscience experts to explain the symptoms and causes of hyperphantasia, as well as the potential benefits and drawbacks of having a photorealistic memory.
What is hyperphantasia?
The brain’s processing abilities are situated on a continuum with hyperphantasia at one end and a condition called aphantasia—the absence of mental visualization—on the other end. Put simply, hyperphantasia occurs when “individuals experience exceptionally vivid and detailed mental imagery,” says psychologist Catherine Nobile, PsyD, director of Nobile Psychology.
People with hyperphantasia have an extremely detailed imagination and can picture objects or scenarios so clearly that it’s like they’re actually experiencing them in real time. These images can be “so vivid, blurring the lines between imagination and perception,” Dr. Nelson says.
A person with hyperphantasia can recall visual details like color, texture, and movement with greater ease and accuracy than someone without this condition. This vividness may even extend beyond vision, affecting other senses including sound, smell, taste, and touch. For example, someone with hyperphantasia might see a person cooking pasta on TV and be reminded of childhood visits to their grandparents’ house with all the smells, tastes, and sounds that accompany this visual memory.
People with this condition also tend to be highly creative, often channeling their abilities toward artistic pursuits. “Together, these symptoms combine to give individuals with hyperphantasia a uniquely rich and detailed inner world,” Dr. Nobile says.
What causes hyperphantasia?
Hyperphantasia is associated with “heightened activity in parts of the brain that handle sensory information and imagination, like the visual cortex,” says Raj Dasgupta, MD, an ABIM quadruple board-certified physician specializing in internal medicine, pulmonology, critical care, and sleep medicine and medical reviewer for NCOA.
Another area of increased activity is the prefrontal cortex, which is involved in complex cognitive functions like concentration and decision-making. Scientifically speaking, neuroimaging studies suggest that increased connectivity and activity in these regions allow people with hyperphantasia to create and manipulate mental images.
Because aphantasia tends to run in families and is associated with autism, as exemplified by a 2020 study, there’s likely a genetic component to visual imagery vividness extremes, Dr. Dasgupta says. So, hyperphantasia could run in the family!
How do you test for hyperphantasia?
It’s no coincidence this story began with a question about breakfast. Describing what you ate for breakfast was one of the earliest tests of visual imagination. The test was developed by explorer and eugenicist Francis Galton in the 1800s. Based on the participants’ ability to recall details about their breakfast, Galton would arrange them on a scale from lacking imagination (aphantasia) to having highly accurate visualizations (hyperphantasia).
Since then, researchers have developed self-report questionnaires and visualization tasks to test for hyperphantasia. The Vividness of Visual Imagery Questionnaire asks individuals to picture certain scenarios and rate the clarity and vividness of their mental images. In addition, brain imaging techniques like functional MRI or PET scans are “used to observe brain activity and connectivity associated with vivid mental imagery, providing further insights into the neural basis of hyperphantasia,” Dr. Nelson adds.
Is hyperphantasia the same as having a photorealistic memory?
Hyperphantasia and eidetic memory are distinct phenomena. Eidetic memory is the ability to “recall images or sounds with high accuracy and detail after seeing them briefly,” Dr. Dasgupta says. In contrast, hyperphantasia refers to the generation of vivid and detailed mental imagery from your imagination.
In other words, hyperphantasia is having the ability to see your birthday cake from when you were seven years old as if your mom just frosted it and it’s waiting for you on the kitchen table; meanwhile, having an eidetic memory is not necessarily being able to see the cake but having the ability to describe exactly how many sprinkles were on top and what shade each one was.
Is it good to have a strong imagination?
Having an exceptionally vivid imagination can foster enhanced creativity. This can be beneficial in fields that involve imaginative thinking such as literature, design, and science. People with an overactive imagination often have “a knack for generating innovative ideas, thinking outside the box, and envisioning unique solutions to problems,” Dr. Nobile adds.
There can be a downside to hyperphantasia as well. Someone with an extremely vivid or overactive imagination may be distracted easily and have trouble focusing on everyday tasks. With increased self-awareness and coping strategies, people with hyperphantasia can learn to use their imagination in healthy and productive ways.
