How does your brain know something is real? Brain blends imagination and reality
10 months ago
- #reality
- #perception
- #neuroscience
- Neuroscientist Nadine Dijkstra discusses how perception involves actively constructing reality rather than passively receiving it.
- Mary Cheves West Perky's 1910 experiment showed that imagination and perception share similarities in creating reality.
- Dijkstra's research uses fMRI scans to show the fusiform gyrus's role in distinguishing real from imagined images.
- The fusiform gyrus and anterior insula show increased activity when perceiving real versus imagined objects.
- A 'reality threshold' concept is introduced, where imagined and perceived signals combine to form a reality signal.
- Potential applications include treating hallucinations in schizophrenia by stimulating the fusiform gyrus.
- Dijkstra's personal experience with misperceiving a fox as a dog highlights how past experiences shape perception.
- Future research questions include whether vivid imaginations correlate with higher hallucination likelihood.
- The importance of challenging perceived realities to advance scientific understanding is emphasized.