Lecture 14- Food craving Flashcards
Addiction
is restricted to the extreme or psychopathological state where control over drug use is lost
Dependence
Refers to the state of needing a drug to function within normal limits; it is often associated with tolerance and withdrawal (symptoms), and with addiction as defined above
What phenomena accompany dependence?
Tolerance, sensitisation, withdrawal and craving
What is food craving?
‘A strong desire to eat a particular food’
Physiological need
One idea is that physiology detects a need for a substance
Leads to motivation to get the substance
In order to repair the bodily deficit
Chocolate craving and ‘addiction’
WHY?
People more readily prepared to admit they are chocolate addicts as opposed to e.g. heroin
People admit this because perhaps they would like to cut down on consumption, but they are not so ashamed of it as they still share this “addiction” (unlike they would with drugs)
Emmunauelle di Tomaso et al
Chocolate has psychoactive properties
Chocolate provides you with a feeling of pleasure when you eat it
Contains a cannabinoid like substance
Smit, Gaffan & Rogers (2004)
Psychoactive effects of cocoa powder and methylxanthines (theobromine and caffeine)
Caffeine and cocoa powder was found to be psychoactive
Also showed effects of coca powder and caffeine on performance
There seems be a psychoactive effect but arguably much can be attributed to the caffeine content
Can cheese be addictive?
High concentration of casein, a protein that can ignite your brain’s opioid receptors
Ambivalence model of chocolate craving
We form a link between context and food
And when we are in that state it triggers a craving
External cues can arouse an appetite
Exposure to cues triggers representations of food
Cue control of specific appetites
Places, situations, feelings, etc. associated with eating
Attribution
With regard to addiction: Explains the craving and blames the food
Benton, Greenfield & Morgan (1998)
Attitudes to chocolate questionnaire
Craving associated with eating chocolate to relieve negative mood, and guilt with failure to resist eating chocolate (and with negative mood)
Positive statements about chocolate associated with its use as an energy-giving snack
Craving in restrained eaters
Eliciting conditions
Eating resisted
Craving
Attribution of addiction
Traditional food craving
Eliciting conditions
Craving
Eating
Moreishness
Desire for more
Occur during eating
Due to attempted restraint of eating ahead of its termination by physiological satiety