Fichas
Pepperberg (1987)
Fichas del conjunto (17)
- 1aimif an African parrot could use vocal labels to demonstrate a symbolic understanding of the concepts of 'different' & 'same'
- 2sampleone African Grey parrot named Alex
who had been involved in prior research
on communication & cognition for 10 years - 3what was Alex already familiar with?colours: blue, green, yellow, rose
materials: wood, cork, hide, paper, metallic items
responding to verbal prompts - 4operational definition: responsefirst vocalisation in response to a question
- 5categorical labels1. colour
2. shape
3. matter - 6why was Alex required to choose from 3 categories instead of 2?to reduce his chances of responding correctly by guessing- he would have been right 50% of the time
this would have reduced internal validity - 7controls used in the task1. materials paired by unassociated student
2. list of questions randomised to be unbiased
3. secondary trainer was used in the trials - 8questions asked to prevent fatigue effects1. what colour?
2. what shape?
3. how many? - 9results for familiar objectsAlex responded to:
99/129 trials + correction procedures
&
correctly answered 69/99 for first-trials - 10results for novel objectsAlex responded to:
96/113 for trials + correction procedures
&
correctly answered 79/96 for first-trials - 11why might Alex have performed better on the novel trials?he might have been more motivated to receive the objects as rewards
(as part of his continuous reinforcement) and investigate them - 12why was Alex trained despite his considerable vocabulary?so he could respond to questions with a categorical label
- 13frequency & duration of training sessions2-4 times a week
&
between 5 mins to an hour - 14training methodmodel/rival approach
- 15what questions was Alex asked during trials?1. what's same?
2. what's different? - 16procedure: trialpresented with 2 objects that could
differ in 3 categories - 17correction procedureafter Alex's response, the primary trainer repeated the vocalisation
if the response was indistinct/incorrect, he was told 'No!', had the obj removed &
the trainer turned their head away
Información
- Descripción
- XI (Learning Approach) Psychology Fichas sobre Pepperberg (1987), creado por Prarthana Nica el 19/04/2023.
- Creado por
- Prarthana Nica · abr 2023
- Actualizado
- 24 abr 2023
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- 13
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