C1 Advanced Reading • Cambridge CPE Preparation
1. What role does human contact play in a child's development of language and social skills?
2. Is it possible for a child to develop language naturally without human instruction? Why or why not?
3. What is a "critical period" in child development? Can you think of other skills that may have critical windows?
4. Prediction: Based on the title, what do you expect the passage to discuss about language acquisition?
The question of whether language is innate or learned has haunted linguistics for centuries. Few cases illuminate this debate more starkly than the accounts of children allegedly raised in isolation from human language—and even more rarely, by animals. These cases, though often anecdotal and methodologically flawed, reveal something crucial about the critical period for language acquisition.
Victor of Aveyron, discovered in 1800 in rural France, exemplifies the tragic consequences of linguistic deprivation. The boy, estimated to be twelve years old, had apparently survived alone in the forest for years, with no evidence of human language exposure. When brought into civilisation and placed under the tutelage of Dr. Jean Itard, Victor displayed severe deficits. His vocalizations were crude, consisting largely of grunts and cries. Despite years of intensive training, Itard could teach Victor only a handful of words. Victor never acquired grammatical structure, syntax, or the ability to understand abstract concepts. The case suggested that without exposure to language during childhood, the neural pathways underlying linguistic competence do not develop properly.
More recent and better-documented is the case of Genie, discovered in Los Angeles in 1970. Genie's parents had kept her in isolation and severe abuse from infancy, deliberately preventing language exposure. She was thirteen when discovered. Like Victor, Genie initially displayed almost no language capacity—her vocabulary consisted of single words, with no grammatical understanding. However, unlike Victor, Genie showed dramatic progress during her first few years of exposure to language. She began combining words, understanding syntax, and acquiring new vocabulary at a rate suggesting genuine language learning. Yet even after years of intensive instruction, Genie plateaued. She never achieved native-like fluency or full grammatical competence. Her comprehension remained ahead of her production, and she struggled particularly with syntax and abstract language.
Both cases suggest the existence of a critical period for language acquisition—a window during which the brain is neurologically optimised for acquiring linguistic competence. Modern neuroscience supports this view. The left hemisphere, dominant in language processing, undergoes significant developmental changes through childhood and early adolescence. Damage to language-dominant regions during this period can be partially compensated by the right hemisphere, but after puberty, this plasticity decreases dramatically. Genie's plateau around age eighteen suggests that critical period closure coincides with neurological maturation in adolescence.
What makes these cases particularly tragic is that they reveal language not as a simple tool but as foundational to cognition itself. Children deprived of language during the critical period show deficits not merely in communication but in reasoning, temporal understanding, and even emotional regulation. Language shapes thought; without early exposure, the capacity for complex thought itself is diminished. The cases of Victor and Genie remind us that language acquisition is neither straightforward imitation nor simply dependent on intelligence. Rather, it requires a specific developmental window, adequate input, and—seemingly—a degree of social interaction. Remove any of these elements, and the result is not merely linguistic poverty but cognitive impoverishment.
Present naturally from birth; not learned but existing from the beginning.
A window of time in development when the brain is optimized for acquiring specific skills.
Lack of exposure to language during developmental years.
Sounds or utterances produced by the voice.
The arrangement of words and phrases to create well-formed sentences.
The brain's ability to reorganize and adapt, especially after damage.
To reach a level and stop progressing further.
The state of being made poor; lacking in necessary resources or abilities.
A Intelligence is more important than language exposure in acquiring linguistic competence.
B Children cannot survive in forests without human language and social interaction.
C Without exposure to language during childhood, neural pathways for linguistic competence do not develop properly.
D Forest environments prevent children from hearing language sounds that are necessary for learning.
A She made dramatic early progress but later plateaued, whereas Victor showed minimal improvement throughout.
B She was younger than Victor when discovered, so her critical period had not yet closed.
C She received more years of intensive training than Victor did.
D She eventually achieved full native-like fluency in her language.
A It was caused by insufficient intensive instruction during her adolescence.
B It suggests the critical period closes during adolescence as the brain matures neurologically.
C It proves that children raised in isolation can never fully recover linguistically.
D It demonstrates that the left hemisphere loses all plasticity after age eighteen.
A Language is simply a tool for communication that can be learned at any age.
B Language is foundational to cognition and shapes how we think and reason.
C Language development depends primarily on individual intelligence rather than exposure.
D Language acquisition requires only access to language input; social interaction is unnecessary.
A It is the dominant hemisphere for language in most people.
B It can compensate for damage to language-dominant regions during childhood but loses this ability after puberty.
C It is responsible for understanding abstract language and grammar.
D It cannot contribute to language recovery at any age.
A To prove that genetic factors, not experience, determine language ability.
B To show that the critical period hypothesis requires multiple case studies to be validated.
C To demonstrate that parental abuse is more harmful than wilderness isolation.
D To illustrate how language deprivation affects cognitive development and supports the critical period hypothesis.
1. The passage suggests that language is "foundational to cognition itself." What does this mean, and can you think of other examples of how language shapes thought?
2. If the critical period truly closes around puberty, what does this mean for language learners? Are adult language learners at a permanent disadvantage?
3. What ethical concerns surround the case of Genie? How should researchers balance scientific inquiry with the welfare of subjects?
4. The passage mentions that Victor was unable to acquire "abstract concepts." Why might language be necessary for understanding abstract ideas?
5. Timed Writing (8 minutes): "The critical period hypothesis suggests that some learning windows cannot be missed. Discuss this in relation to language acquisition and any other skills you can think of."