Writing in the journal Health Psychology, Dr Nicole Frazer and colleagues said further research was needed.
An "artificial barrier" helps eaters decide when to stop, says Andrew Geier, lead author of the study published in Health Psychology.
The first data results, published this month in Health Psychology, a journal of the American Psychological Association, found that the students given the tubes with the marked chips ate on average half the number of chips as the students given the unmarked tubes.
Imogen, from Llanelli, is a bar hostess who was Miss Wales in 2003, and has a BSc degree in health studies and psychology.
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Prof Peter Kinderman is head of the Institute of Psychology, Health and Society at the University of Liverpool.
Cary Cooper, professor of organisational psychology and health at Lancaster University, also blames economic insecurity and geographical mobility.
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It is a sentiment shared by Prof Cary Cooper, an expert in organisational psychology and health at Lancaster University Management School.
"We believe that there is now overwhelming evidence that DSM-5 is scientifically unsound (and) statistically unreliable, " said clinical psychologist Peter Kinderman, director of the University of Liverpool's Institute of Psychology, Health and Society.
She founded Commonwealth Psychology Associates LLC, a behavioral health and counseling company in Boston in 2004.
After getting my doctorate in clinical psychology I took a position as clinical director for behavioral health services on Cape Cod.
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McLelland was an Army veteran who later earned a master's in psychology and became a psychologist for the Texas Department of Mental Health and Mental Retardation, the district attorney's website said.
After returning to school to earn her doctorate in psychology, Jan worked for five years in the field of mental health.
To really get the full benefits of wellness when it comes to day-to-day psychology, however, many businesses are upping the ante by actually bringing health to the office and encouraging employees to get short workouts while on the job.
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Professor Dieter Wolke, from the University of Hertfordshire's department of psychology, said the study showed the benefits of bullying were not restricted to health alone.
The government said there were targets in place for patients' access to psychology services - and to improve the quality of care delivered to people presenting with mental health problems.
Drew Westen, an Emory University psychology professor who wrote "The Political Brain, " said the ad debate is about much more than health care.
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