What if there was a way to know what we’re thinking just by looking at a person's brain map? A recent study was able to find specific regions in the brain that were active when certain colors were shown to the study groups. The researchers were able to know what colors the participants were shown based on which brain area was more active during the study. This study may be able to show us more about our visual perception on objects and how patterns can also have effects on our different brain regions.
Using MEG (Magnetoencephalography) researchers found that certain hues of colors activate different regions of the brain in participants. Pink, blue, green and orange were used in the study as well as shades of darker and lighter colors. Each color activated a specific region in the brain that allowed researchers to know which colors were being shown to the participant by looking at the brain maps of participants. The colors were also shown on a spiral shape to make it easier for participants to focus more attention on the colors being shown. This may be the reason behind the colors being shown were easier to be identified in brain maps.
There were 18 participants in the study and 8 colors were used, pink, blue, and orange, and 2 shades of each color, lighter and darker. Within hues there was not much of a difference between seeing the hues as darker or lighter, the brain region. For example, the brain region still perceived the color as orange and not much difference in darker or lighter hues. There were also similarities in detecting light hues of orange and pink which shows that some colors are perceived to be the same based on the hue. Overall, it was easier for participants to identify the darker hues over the light hues.
It would be interesting to see what other types of studies can be done with this research using MEG to view brain activity. Would researchers be able to see different brain region activity in object and pattern recognition being? What type of data can be gathered in language and word processing to see if certain words or sentences activate different regions of the brain? The studies can also show us more about our thought processes from thoughts to actions as well. Overall, this study can lead to many other studies such as color depth in objects we see every day, in how we interact with our environment on a day-to-day basis. The study can also show us that it can go beyond color perception research and into pattern recognition, or language and word processing.
“Color Space Geometry Uncovered with Magnetoencephalography” by Isabelle A. Rosenthal, Shridhar R. Singh, Katherine L. Hermann, Dimitrios Pantazis, Bevil R. Conway. Current Biology
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