Counting systems and the Pirahã tribe
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Counting systems and the Pirahã tribe
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[post_date] => 2025-01-01 07:46:04
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[post_content] => Practice Passage (Question 1-5)
*This passage is the property of Khan Academy and has been reformatted into an AAMC-style interface in their entirety by MedLife Mastery. MedLife Mastery does not endorse and is not an affiliate of Khan Academy.
One of the central questions in language is linguistic determinism. Language is an important component of one’s ability to comprehend numbers and quantities. Counting takes many forms depending on culture. Researchers have not yet found a language that does not represent numbers. Some cultures use body parts to count or forms of recursion using a small numerical base. Gumulgal South Sea Islanders count utilizing a recursive binary system. The Pirahã are a monolingual population (< 200 population) that have rejected assimilation with Brazilian culture. A predominantly hunter-gatherer population, the Pirahã live in villages of between 10 and 20 people on the banks of the Maici River in Brazil’s Lowland Amazonia region. The Pirahã counting system consists of what is termed the “one-two-many” system. Quantities beyond two are described as many, in this system of counting.
A researcher visited the Pirahã tribe to test the impact of counting systems on the ability to estimate quantity. Members of the Pirahã tribe were given a visual counting task to test the impact of numerical systems on visual estimation. Each tribe member was allowed to inspect a group of nuts for a few seconds. The nuts were placed in an opaque can, so the quantity could not be viewed. For each trial, a nut was removed from the can, and the tribe member was asked to tell the researcher if the can still contained nuts. Tribe members who were able to estimate the quantity of nuts in the can would be able to tell when there were none left. Figure 1 shows the proportion of correct responses averaged for each target number of nuts over all trials.
Figure 1: Results for the Pirahã tribe members’ trials averaged for each target number (n = 63). For each trial, each tribe member estimated the number of nuts left in the can (target). The proportion of correct responses is shown (the first and last nut were excluded).
Gordon, P. (2004). Numerical cognition without words: Evidence from Amazonia. Science, 306(5695), 496-499.
[post_title] => Counting systems and the Pirahã tribe
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[question] => Which conclusion is best supported by the data contained in Figure 1?
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[answer] => 1
[description] => Reason for the Correct Answer:
The tribe members were unable to see the number of nuts left in the jar, therefore chunking could not aid the estimation.
We are unable to draw direct conclusions between linguistic structure and socialization.
However, it is apparent that a lack of descriptive vocabulary in terms of set size leads to an inability to accurately gauge how many nuts are in the jar. Therefore, language has a strong influence on the predictability of set size.
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[each_answer] => A. Language has a strong influence on the predictability of set size.
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[each_answer] => B. The accuracy in estimating the number of nuts left in the jar is constrained by the ability of the tribesmen to perform chunking.
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[2] => Array
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[each_answer] => C. Language does not influence linguistic structure, but instead influences the social structure built around it.
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[3] => Array
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[each_answer] => D. There were social constraints which did not allow for representing numbers larger than two.
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[quiz_unique_key] => 3873426850
[question] => Which theory is best supported by the data in Figure 1?
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[answer] => 4
[description] => Reason for the Correct Answer:
The universalist believes that human cognition shapes language and language is created from a set of universal semantic distinctions.
Vygotsky believed that language development cannot be separated from social context and that the environment contributed to biological factors to build language abilities.
Although weak linguistic determinism describes an influence on language, the data show both a much lower score than the students and a significant drop to just above chance at four nuts.
Whorfian theory believes language strictly constrains thoughts and determines how and about what an individual is able to think.
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[each_answer] => A. Vygotsky
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[each_answer] => B. Universalist
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[each_answer] => C. Weak linguistic determinism
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[each_answer] => D. Whorfian
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[2] => Array
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[quiz_unique_key] => 83407773
[question] => Which theory would support the viewpoint: the Pirahã have not needed a counting system that uses numbers beyond two and when a better numbering system is necessary, their language will create it?
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[answer] => 2
[description] => Reason for the Correct Answer:
Piaget believed that a child’s interaction with objects drives language development.
Weak Linguistic Determinism believes linguistic structure influences but does not determine the context of everyday encounters.
Whorfian theory believes linguistic structure determines how and about what an individual is able to think.
Vygotsky believed that language development could not be separated from social context and environment contributed to biological factors to build language.
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[answers] => Array
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[each_answer] => A. Piaget
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[each_answer] => B. Vygotsky
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[each_answer] => C. Whorfian
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[each_answer] => D. Weak linguistic determinism
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[quiz_unique_key] => 2261298308
[question] => Which statement would describe the Universalist view of language development?
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[answer] => 4
[description] => Reason for the Correct Answer:
Weak linguistic determinism describes language development as influencing the way that knowledge is conceptualized.
Vygotsky believed that knowledge development could not be separated from social contexts.
Universalists believe a small number of universal constructions of language shape human language.
The Pirahã language is shaped by human universals, but those differences do not affect cognition.
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[each_answer] => A. The Pirahã language is determined by universal structures, which determine the visualization capacity.
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[each_answer] => B. The Pirahã language’s linguistic structure influences the way that the tribe thinks about quantification in their everyday encounters.
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[each_answer] => C. The Pirahã language and the development of their counting system cannot be separated from social context.
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[each_answer] => D. The Pirahã language is shaped by human universals but those differences do not affect cognition.
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[quiz_unique_key] => 574431310
[question] => Which choice best describes a challenge to Chomsky’s beliefs?
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[answer] => 2
[description] => Reason for the Correct Answer:
There is no reason to believe that there are any significant biological differences between the English-speaking college students and the Pirahã tribe members.
The Gumulgal South Sea Islanders’ language does not fit the model of universal grammar.
Universal grammar is an important component of the nativist viewpoint.
The Gumulgal South Sea Islanders’ counting system does not fit the model of universal grammar, which determines the fundamental capacity of their language and is an important component of the nativist viewpoint.
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[each_answer] => A. The differences between English and the language of the Pirahã tribe are biologically determined.
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[each_answer] => B. The Gumulgal South Sea Islanders’ counting system does not fit the model of universal grammar which determines the fundamental capacity of their language.
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[each_answer] => C. The Gumulgal South Sea Islanders’ utilization of a universal grammar determines the fundamental capacity of their language.
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[each_answer] => D. Both the English language and the language of the Pirahã tribes are able to conceptualize mentally all natural numbers.
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