Bridging the gap between human memory and perception

Bridging the gap between human memory and perception
The hippocampus may relay predictions about what we expect to see based on past experience to the visual cortex, suggests a human neuroimaging published in JNeurosci. The study is among the first to examine the interaction between these two aspects of cognition. Credit: Kok and Turk-Browne, JNeurosci (2018)

The hippocampus may relay predictions about what we expect to see based on past experience to the visual cortex, suggests a human neuroimaging published in JNeurosci. The study is among the first to examine the interaction between these two aspects of cognition.

Associating two different sensory experiences, such as hearing a bark with seeing a dog, allows people to perceive the world more efficiently than relying on alone. How the brain "fills in" this perceptual information, however, is unclear.

Investigating the relationship between sound cues and visual shapes in the brain, Peter Kok and Nicholas Turk-Browne found that the represents what one expects to see while the represents what is actually seen. Expectations in the hippocampus were related to visual processing, suggesting a mechanism by which memory can inform perception.


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More information: Peter Kok et al, Associative prediction of visual shape in the hippocampus, The Journal of Neuroscience (2018). DOI: 10.1523/JNEUROSCI.0163-18.2018
Provided by Society for Neuroscience
Citation: Bridging the gap between human memory and perception (2018, July 13) retrieved 24 March 2019 from https://medicalxpress.com/news/2018-07-bridging-gap-human-memory-perception.html
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