It is 8:00 am, pre-coffee (if that’s your thing), and you’re getting ready to walk out the door after a night of staying up with your sick spouse, child, or roommate. You’re starting to feel super-human, juggling all your pre-work morning responsibilities with a heavy head and groggy eyes, when your spouse/child/roommate walks up to you and asks an innocent question: “I’m hungry. What are we having for breakfast?” You look at their cheerful face and take instant offense. You think, “What do you mean, what’s for breakfast? Can’t you see I’m simultaneously feeding the dog, prepping the beans for tonight’s slow-cooker dinner, and reading Junior’s school newsletter?
According to a new U.C. Berkeley study published in the Journal of Neuroscience earlier this week, there is a strong link between a lack of quality sleep and decreased ability to distinguish between positive and negative emotional facial expressions in others. Researchers viewed brain scans and monitored the heart rates of 18 adult participants while they randomly viewed 70 images of faces with random expressions: positive, neutral, and negative emotions. Each individual viewed the facial images twice, once when they were fully rested and once after they had been awake for 24 consecutive hours. The study noted a neural link between the quality and amount of sleep a person gets and his or her ability to correctly process others’ facial expressions. The results of the study inferred that there is “a role for REM sleep in affective brain recalibration” and “the next-day success of emotional discrimination…” All the more reason to get a good night’s sleep! For more information on the study, you can refer to the following articles: http://news.berkeley.edu/2015/07/14/brain-facialexpressions/ http://www.huffingtonpost.com/2015/07/15/sleep-brain-emotions_n_7801726.html