There exists a critical period for learning language, supporting the nativist theory proposed by Noam Chomsky.
Definition: A specific window in early childhood during which the brain is most effective at acquiring language skills.
After this period, acquiring language becomes significantly more challenging.
Case Study: Genie, the feral child
Lacked language exposure until after puberty.
Managed to learn some vocabulary and social cues but could not master grammar or achieve fluency.
Second Language Acquisition
Second language acquisition is greatly influenced by age, with children having an advantage.
Bilingual Homes: Growing up in bilingual environments significantly eases second language learning.
Bilingual Schools: Increasing trend of bilingual education in primary schools enhances language learning capacities.
Children exposed to a second language often achieve near-native pronunciation, unlike adults who struggle with accent and grammar complexities during learning.
Language Learning Difficulty:
Vocabulary acquisition tends to be easier compared to grammar, which is more challenging once past the critical period.
Bilingualism
Historical Beliefs: Earlier assumptions posited that bilingual upbringing caused confusion or delays in language acquisition for children.
Observations showed bilingual children possessed a smaller vocabulary in each language than monolingual peers.
Counterargument: When accounting for total vocabulary (English + Spanish), bilingual children had a greater overall word knowledge.
Cognitive Benefits of Bilingualism:
Enhanced attention and mental flexibility.
Associated with a later onset of dementia compared to monolinguals, suggesting biological advantages such as increased gray matter in brain areas responsible for language.
Language and Thought
Sapir-Whorf Hypothesis (Linguistic Determinism):
Suggests that language structure shapes thought processes; one cannot think of concepts not expressed in one's language.
Example: Speakers of a language with no future tense might struggle to conceptualize the future.
Counterexample: The ability of individuals, including deaf individuals who use sign language, to think abstractly without auditory language.
Current Consensus: Language influences thought rather than strictly determining it. For example, cultures with varied lexicons for snow distinguish between types of snow more adeptly.
Illustration with the Russian language, where different terms exist for shades of blue, allowing speakers to perceive and differentiate more effectively than speakers of languages like English with more limited vocabulary for color.
Animal Communication
Debate over whether animals possess language akin to humans.
Research on Apes:
Certain apes, such as Coco the gorilla, learned signs and displayed the ability to create novel combinations to express new ideas, indicating a form of complex communication.
Kanzi the Bonobo: Taught to communicate using a lexigram system, showing comprehension and use of signs.
Properties of Language
To understand language, one must grasp various properties:
Language Properties: Phonemes, morphemes, syntax, semantics.
Theories of Language Acquisition: Behaviorist vs. Nativist, emphasizing innate biological capacities for language learning.
Learning Theories:
Understanding critical periods for linguistic acquisition and the impact of bilingualism on cognitive functioning.
Memory Overview
Definition of Memory: Retaining knowledge and experiences; essential for learning applicable information for future use.
Memory plays a role in survival and adaptation.
Three Stages of Memory:
Encoding: The process of receiving and processing information.
Storage: Saving information in memory.
Retrieval: Accessing stored information.
Types of Memory
Sensory Memory:
Duration: Very brief, lasting only milliseconds.
Capacity: Potentially large but often fades quickly if not transferred to short-term memory.
Short-term Memory:
Duration: Typically lasts 20-30 seconds.
Capacity: Limited to about seven items (plus or minus two).
Methods to enhance short-term memory: Rehearsal and chunking (organizing data into manageable units).
Working Memory:
An active version of short-term memory that involves manipulation of information rather than mere storage.
Long-term Memory:
Duration: Can last a lifetime with extensive capacity.
Classification:
Explicit Memory (Declarative)
Episodic Memory: Personal experiences or events.
Semantic Memory: Factual knowledge without personal experience.
Autobiographical Memory: Combines episodic and semantic memory, relating to personal lived experiences.
Implicit Memory (Non-declarative)
Involves knowledge that affects behavior unconsciously, including procedural skills and priming effects.
Memory Processes
Recall vs. Recognition:
Recall: Involves pulling information from memory without cues (like essay questions).
Recognition: Identifying previously learned information (similar to multiple-choice questions).
State-dependent memory: Physiological state affects memory retrieval.
Memory Reconstruction: Memory accuracy may decrease over time due to integration of new information with recalled data, similar to reconstructing a building after it has fallen apart (suggesting that memory is not static but fluid and adaptive).