But it is also arguable that the Democrats' big problem 15 years ago was not the failure on health care but the perception that the party had moved too far left.

ECONOMIST: Of polls and presidents

Do you guys believe that voters make their decisions principally on their perception of the health of the national economy, or are they positively affected by the fact that things may be somewhat better closer to home?

WHITEHOUSE: The White House

Just like with depression or any other mental health disorder, public (and media) perception still plays a big role.

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With the cultural perception that the people's health is linked to that of the environment, medicinal plant conservation and health care are closely inter-related in the Dolpo region.

UNESCO: Communication and Information

Notably, the perception of economic improvement rather than actual economic health itself plays a key role in voting patterns, the research shows.

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He said her perception of the risk to her mother's health was not that of a normal person because of her mental disorder.

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Providing the perception of healthier alternatives gave customers who may have left on health concerns a reason to come back.

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Losses for stocks have built not just because confidence in the health of the global economy has slumped but also on account of the growing perception of intransigence amongst European governments.

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But Marian Sheridan, coordinator for health and safety for Wisconsin's Fond du Lac school district, counters that it is a "false perception" that schools and parents know which kids need help.

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