Serial position effects in social transmission of food preference: retention/demonstration intervals.
The effects of retention and demonstration intervals on serial position were evaluated in two experiments with Long-Evans rats. A list of 3 demonstrators that had eaten one of three flavored foods was presented to naive observers. In Experiment 1, there were four groups, three groups with a retention interval compared with one group with a zero retention interval or no retention interval. In Experiment 2, the demonstration interval was reduced. Intervals of 15, 5, 2, and 1 min were used. In Experiment 1, primacy decreased gradually in the four groups as the retention interval was increased in duration. In Experiment 2, primacy also decreased gradually, and recency occurred with the 1-min demonstrator interval. The increase in the duration of the retention interval reduced primacy. The reduction in the duration of the demonstration interval decreased primacy and produced recency.
Melchor-Hipólito
Benjamin
B
National Autonomous University of Mexico, Campus Iztacala, Tlalnepantla, Mexico.
Meza-Reynoso
Gustavo
G
Juárez-Maldonado
C Edith
CE
Ortega-Saavedra
Guadalupe
G
Cruz-Morales
Sara E
SE
Arriaga-Ramírez
J C Pedro
JC
D000704:Analysis of Variance; D000818:Animals; D001288:Attention / Q000502:physiology; D001522:Behavior, Animal / Q000502:physiology; D005260:Female; D005518:Food Preferences / Q000502:physiology*; D011939:Mental Recall / Q000502:physiology*; D051381:Rats; D020318:Rats, Long-Evans; D012153:Retention, Psychology / Q000502:physiology*; D012691:Serial Learning / Q000502:physiology*; D012919:Social Behavior; D013997:Time Factors