Washington, Oct 29 : When it comes to the brain, there is fine line between love and hate, say researchers from the Wellcome Laboratory of Neurobiology at University of California, who claim to have identified brain’s "hate circuit.”

According to boffins, the new scans of the brain''s "hate circuit" have confirmed similarities between the two powerful emotions.

But whereas loved-up partners are likely to be less rational, the new scans show hate to be colder and more calculating.

Washington, October 29 : When it comes to decision making, stressed out older adults are more likely to alter their behavior than their younger counterparts, reveals a new study.

According to Mara Mather of USC Davis School of Gerontology, older adults (65 to 89) tend to alter their behaviour more than the young adults (18 to 33) when stressed – especially when situational risks are involved.

Mather and her colleagues Marissa Gorlick, of the USC Emotion and Cognition Lab, and Nichole Kryla-Lighthall, a USC doctoral student, asked adults, both young and old, to play a driving game relating to real-life situations involving common risks.

Washington, Oct 29: Democratic presidential nominee Sen. Barack Obama will showcase his campaign on Wednesday night in a 30-minute commercial to air before the World Series, spending about one million dollars per spot to communicate directly with viewers across several networks simultaneously.

Washington, October 29 : Americans who claim that they have yet not decided whether to cast their votes in favour of Democratic presidential candidate Barack Obama or his Republican counterpart John McCain might actually have implicitly made their choices, even though they have not realized it so far.

This suggestion comes from a team of researchers from the University of Virginia, Harvard University, and Tony Greenwald of the University of Washington.

Washington, October 29 : American researchers have identified a class of compounds that can prevent degeneration of neurons, the underlying cause of conditions like Alzheimer''s disease, Parkinson''s disease, and amyotrophic lateral sclerosis (ALS).

Researchers at the University of Texas at Dallas and Southern Methodist University insist that their study attains significance because current medications for such neurodegenerative diseases alleviate only their symptoms but not the underlying cause.

The researchers describe the compounds they have identified as 3-substituted indolones.

They have also conducted a structure-activity relationship study to identify substituent groups that are important for neuroprotective efficacy.

On Wednesday night, all major broadcast networks will air Barack Obama’s half-hour campaign ad., except for ABC, who attempting to protect its Wednesday line-up, failed to reach an agreement to air the commercial on a different night.  

Later but too late, ABC did offer the Democratic presidential candidate the 8:00 p.m. EDT Wednesday slot, only to find that his campaign ad buy had already been finalized.  Instead, Walt Disney owned ABC will air the hour long ‘Pushing Daisies’ at the scheduled time.