PSYC 2230 Chapter 4: Chapter 4 Motivation Notes
4 Dec 2016
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The variety of food available influences how much we eat. Consuming the same foods over and over reduces the hedonic value of that food. Exposed to an unchanging diet will eat less, sensory specific satiety. When the same foods are eaten again and again these stimulus qualities of food lead to faster satiation by these foods. Hunger means increased activity in the amygdala when shown pictures of food. Motivation to eat influences out reactivity to food stimuli in the environment. Motivation to eat is especially sensitive to cues associated with food and that these cues may instigate eating. Local theory of motivation assumes that the signals that control motives such as hunger and thirst are produced in the peripheral organs of the body proved to be inadequate theory. Spe(cid:272)ialized (cid:272)ells i(cid:374) the (cid:271)rai(cid:374) dete(cid:272)ted (cid:272)ha(cid:374)ges i(cid:374) the (cid:271)ody"s state a(cid:374)d triggered appropriate motivation. Injections of glucose into the hepatic portal vein suppress feeding.
