Navigation Links
Infants' hemodynamic responses to happy and angry facial expressions
Date:11/5/2010

Japanese research group led by Prof. Ryusuke Kakigi and Dr. Emi Nakato (National Institute for Physiological Sciences: NIPS) and Prof. Masami K Yamaguchi (Chuo University) found that the hemispheric differences in the temporal area overlying superior temporal sulcus (STS) when processing positive (happy) and negative (angry) facial expressions in infants. Their finding was reported in NeuroImage.

Near infrared spectroscopy (NIRS) is an optical imaging technique that can measure changes in the concentrations of oxyhemoglobin (oxy-Hb), deoxyhemoglobin (deoxy-Hb), and total hemoglobin (total-Hb) as an index of neural activation. Recently, NIRS has been widely used to reveal the brain activity for cognitive processing in awake infants.

Neuroimaging studies in adults has revealed that the STS is involved in the processing of facial expressions, while infants' brain regions involved in perceiving facial expressions has not been investigated. To examine whether the STS is responsible for the perception of facial expressions in infants, the research group measured the hemodynamic responses in STS during the perceptions of happy and angry faces with NIRS.

The findings showed that 1) the hemodynamic responses elicited by the perception of happy faces increased continuously even after the happy face stimuli disappeared, whereas of the neural response to angry faces decreased much more rapidly when the presentation of angry faces ceased, and that 2) the left temporal area of infants' brain was significantly activated for happy faces, while the right temporal area was activated for angry faces.

The research group said, "the different hemodynamic responses between the perception of positive and negative expressions in infants is related to the different biological meanings of positive and negative facial expressions; a positive facial expression can convey a pleasant meaning, while a negative facial expression can be unpleasant or convey danger. The hemispheric lateralization of neural responses to facial expressions develops by the age of 6 months."


'/>"/>

Contact: Dr. Emi Nakato
nakato@nips.ac.jp
81-564-557-811
National Institute for Physiological Sciences
Source:Eurekalert

Related medicine news :

1. Overheating in Infants Can Lead to SIDS, Experts Warn
2. Oklahoma clinical trial to test early detection technique for eye disease in premature infants
3. OHSU research reveals possible method for boosting the immune system to protect infants against HIV
4. NCH investigators receive grant to distinguish bacterial infections from viral infections in infants
5. Women and Infants provides fertility preservation for childhood cancer survivors
6. Short nighttime sleep duration among infants, young children associated with obesity in later life
7. Infants May Display Subtle Autism Signs at 6 Months: Study
8. University of Utah researchers fight genetic killer of infants and toddlers
9. Study sheds light on deadly GI disease in infants born with complex congenital heart disease
10. Disagreement on symptom-reflux association analysis parameters in infants
11. Infants Vulnerable to Measles Before 1st Shot
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/26/2017)... York, NY (PRWEB) , ... May 26, 2017 , ... ... Health & Wound Care" campaign in USA Today, which will educate readers on how ... side of the campaign, a large focus is placed on melanoma. Dancing with the ...
(Date:5/26/2017)... ... May 26, 2017 , ... ... new educational seminar to focus on current legislative activity and the latest regulatory ... at 1 p.m. Sunday, Sept. 10, and will continue through Monday, Sept. 11, ...
(Date:5/26/2017)... ... 26, 2017 , ... A new analysis of community health data reveals that ... in the Midwest. With the average cost of healthcare rising and the U.S. senior ... the quality and affordability of where they live. An annual 2017 report looked at ...
(Date:5/26/2017)... MA (PRWEB) , ... May 26, 2017 , ... On ... Act (AHCA), which narrowly passed the U.S. House on May 4, would result in ... be expected under continued implementation of the 2010 Patient Protection and Affordable Care Act ...
(Date:5/26/2017)... , ... May 26, 2017 , ... Silver Birch of ... which is located on more than four acres of land at 5620 Sohl Avenue ... , The 103,000 square-foot building includes 125 studio and one-bedroom apartments. Each of the ...
Breaking Medicine News(10 mins):
(Date:5/4/2017)... , May 4, 2017  Fortuna Fix Inc. (" Fortuna ... be the first to eliminate the need for embryonic and ... to treat neurodegenerative diseases. Fortuna announced ... Professor Michael Fehlings , MD, PhD; Father Kevin ... MD, MPH; and Professor James Giordano , PhD. ...
(Date:5/4/2017)... , May 4, 2017 Clarius ... its wireless, handheld ultrasound scanners this week at ... Scientific Meeting (ACOG) in San Diego, ... "Clarius is the perfect tool for ... and heart rate, and evaluate pregnancy-related complications like ...
(Date:5/4/2017)... 4, 2017  DarioHealth Corp. (NASDAQ: DRIO), a leading ... data solutions, today announced that it is teaming up ... Technologies Limited to lower diabetes healthcare costs in ... card, which is available throughout all provinces and territories ... be eligible for additional savings when shopping for Dario ...
Breaking Medicine Technology: