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Related Concept Videos

Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

981
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
981
Language and Cognition01:27

Language and Cognition

412
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
412
Language01:16

Language

384
Language is a unique communication system that uses words and systematic rules to organize and transmit information. Unlike other forms of communication, which may involve postures, movements, odors, or vocalizations, language relies on symbols and grammar. This makes human communication distinct from that of other species, who also communicate but do not use language in the same way humans do.
Corballis and Suddendorf (2007) and Tomasello and Rakoczy (2003) highlight the role of language in...
384
Interference and Decay01:16

Interference and Decay

188
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
188
Components of Language01:24

Components of Language

357
Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
357
Language Development01:22

Language Development

426
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
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Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
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APHASIA: HOW OUR LANGUAGE SYSTEM CAN "BREAK".

Maria V Ivanova1, Nina F Dronkers1,2

  • 1Aphasia Recovery Lab, Department of Psychology, University of California, Berkeley, Berkeley, CA, United States.

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Aphasia is a language disorder caused by brain damage, affecting millions globally. This article clarifies aphasia types, symptoms, and brain language processing for better understanding.

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Area of Science:

  • Neuroscience
  • Linguistics
  • Neurology

Background:

  • Language acquisition and processing are fundamental human cognitive functions.
  • Disruptions to the language system, such as aphasia, highlight its complexity.
  • Aphasia affects approximately 15 million people worldwide, with 2 million in the U.S.

Purpose of the Study:

  • To elucidate the nature of aphasia, a language disorder resulting from brain damage.
  • To increase public awareness and understanding of aphasia.
  • To detail the various types of aphasia, associated language impairments, and the neural basis of language.

Main Methods:

  • Review of existing literature on aphasia and brain-language relationships.
  • Explanation of different classifications of aphasia.
  • Description of language processing mechanisms in the brain.

Main Results:

  • Brain damage can lead to significant language impairments, collectively known as aphasia.
  • Aphasia manifests in various forms, each with distinct characteristics.
  • Understanding brain regions involved in language is crucial for comprehending aphasia.

Conclusions:

  • Aphasia is a prevalent yet often misunderstood condition.
  • Further education on aphasia types, symptoms, and neural underpinnings is necessary.
  • This article serves as an informative resource on aphasia for a broad audience.