Navigation Links
MRI Shows Emotional Changes During Menstrual Cycle

Brain scans have recently revealed that mental processes can change across the menstrual cycle. //

The orbitofrontal cortex (OFC) has been implicated in the representation of emotional stimuli, assignment of emotional valence/salience to stimuli, stimulus-reinforcement association learning, motivation, and socio-emotional control.

In the study, which appears in the online early edition of the Proceedings of the National Academy of Sciences, Scientists at Weill Medical College of Cornell University, New York, and The Rockefeller University, New York, used MRI scans to monitor the brain activity patterns of women as they were asked to read words with negative, neutral or positive connotations.

The reserachers recruited 12 women for the study, who were asked to perform the same task premenstrually - one to five days before their period was due - and then postmenstrually - eight to 12 days after their period.

During the premenstrual phase the women showed much greater activity in frontal brain regions that help control emotions when they were reading the emotive words. Postmenstrually, this increased brain activity had disappeared.

The researchers say it is possible that the brain changes might have allowed the women to maintain a consistent emotional state and compensate for the surging hormones that occur around menstruation, which some suggest are involved in PMS. Also, women who experience particularly severe emotional symptoms as part of PMS may lose this control.

Using functional magnetic resonance imaging in female subjects without premenstrual mood symptoms, the researchers found that OFC activity to emotional linguistic stimuli varies depending on the menstrual cycle phase.

Specifically, anterior-medial OFC activity for negative vs. neutral stimuli was increased premenstrually and decreased postmenstrually. The inverse pattern was seen in the lateral OFC.

These findings suggest that sp ecific subregional OFC activity to emotional stimuli is modulated across the menstrual cycle.

The data also demonstrate that menstrual cycle phase is an important consideration in further studies attempting to elucidate the neural substrates of affective representation.

Thus, the authors stress that emotion-controlling brain activity increased premenstrually, and that women use their brains differently at different times of the month.

Medindia on premenstrual syndrome :

The premenstrual syndrome (PMS, also called late luteal phase dysphoric disorder) is characterized by the presence of both physical and behavioral symptoms that occur repetitively in the second half of the menstrual cycle.

Related medicine news :

1. Experimental treatment for Ebola Virus Shows promising results in mice
2. New Prostate Cancer Vaccine Shows Promise
3. Ebola Treatment Shows Promise
4. New Drug Shows Significant Improvement In HIV-related Heart Condition
5. Greek Study Shows Living In The Hills May Be Healthier
6. Research Shows Carbon Monoxide Prevents Inflammations
7. Latest Research Shows That Multivitamins Might Not Prevent Infections In All Elderly
8. Novartis MS Drug Shows Promising Results
9. Bronchiolo-alveolar Carcinoma Shows Sonographic Pattern Of Pneumonia
10. AIDS drug GS 9137 Shows Promise
11. Teenager Shows Signs Of Recovery after Receiving Massive Dose of Radiation
Post Your Comments:

(Date:12/1/2015)... ... 01, 2015 , ... PYA’s latest white paper, “ PYA ... main “pain point” for merging or aligning healthcare provider organizations—when mergers and other ... This quick-read guidance suggests that failing to recognize the power of an ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... and SACC-USA through membership and leadership since 2008. Gary Bruce, President of ... SACC-USA . Gary has spent a significant amount of time in Sweden since ...
(Date:12/1/2015)... ... , ... Nurotron Biotechnology Co., Ltd., maker of cochlear implant systems, has won ... order will be from the China Disabled Persons’ Federation, a central government association, for ... for children and adults suffering from severe and profound hearing loss . The ...
(Date:12/1/2015)... , ... December 01, 2015 , ... ... on receiving the 2015 HSJ Acute Sector Innovation Award on November 18th. This ... patient care experience, and propose exciting enhancements to the medical landscape. , The ...
(Date:11/30/2015)... ... 2015 , ... Third Molar SEO , one of ... launched a sleek, mobile-ready and user-centric redesigned website. , Vivek Srivastava, founder and ... the benefits that its SEO services provide to dentists and why Third Molar ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... , Nov. 30, 2015  The ... norm in U.S. medical imaging is on ... popular accountable care payer-provider contracts are set ... in their wake, alter provider-vendor relationships. The ... will push forward new purchasing frameworks in ...
(Date:11/30/2015)... , Nov. 30, 2015 Oramed Pharmaceuticals Inc. ... on the development of oral drug delivery systems, announced ... valued at up to $50,000,000 with Hefei Tianhui Incubator of Technologies Co., ... insulin capsule, ORMD-0801, in China , ... Macau . The agreements were signed at the ...
(Date:11/30/2015)... Nov. 30, 2015 iCAD, Inc. (Nasdaq: ... feature its latest solutions for advanced image analysis ... cancer at the Radiological Society of North American ... from November 29 to December 4, ... including iReveal®, an automated breast density assessment solution, ...
Breaking Medicine Technology: