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Related Concept Videos

Storage01:23

Storage

A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze each...
Language and Cognition01:27

Language and Cognition

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.
Understanding Memory01:19

Understanding Memory

Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
Implicit Memories01:24

Implicit Memories

Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
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Automatic Processing and Automatic Social Behavior01:28

Automatic Processing and Automatic Social Behavior

Automatic processing refers to the cognitive operations that occur without conscious intent or awareness, playing a fundamental role in shaping social cognition and behavior. These processes enable individuals to navigate complex social environments efficiently by relying on mental shortcuts and pre-existing knowledge structures known as schemas. One of the most influential mechanisms underlying automatic processing is priming, which subtly activates mental representations through exposure to...
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

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...

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A Semantic Priming Event-related Potential (ERP) Task to Study Lexico-semantic and Visuo-semantic Processing in Autism Spectrum Disorder
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Semantic memory and language processing: a primer.

Sharon M Antonucci1, Jamie Reilly

  • 1Department of Speech-Language Pathology and Audiology, New York University, New York, NY 10012, USA. sma208@nyu.edu

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Summary

Semantic memory, our knowledge of word and object meaning, is a dynamic system. Understanding its neural basis is key for targeted treatments in aphasia and dementia.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Linguistics

Background:

  • Semantic memory stores word and object meanings.
  • It's increasingly viewed as a dynamic, distributed cortical network, not a passive store.
  • Damage to semantic memory components causes distinct impairments in aphasia and dementia.

Purpose of the Study:

  • To review neuroanatomically informed theories of semantic memory organization.
  • To explore how semantic impairment affects language processing in aphasia and neurodegenerative disease.
  • To emphasize the need for treatment specificity based on understanding semantic memory structure and damage.

Main Methods:

  • Review of existing neuroanatomically informed theories.
  • Analysis of semantic impairment profiles in aphasia and dementia.
  • Discussion of treatment implications for distinct patient groups.

Main Results:

  • Semantic memory is a dynamic system relying on distributed cortical networks.
  • Damage leads to specific language deficits in neurological conditions.
  • Treatment effectiveness varies significantly between aphasia and dementia.

Conclusions:

  • A comprehensive understanding of semantic memory structure is crucial for developing effective, targeted treatments.
  • Distinct patterns of semantic impairment necessitate tailored therapeutic approaches.
  • Differentiating semantic deficits in aphasia versus dementia is vital for successful intervention.