association cortex
Học thuậtThân thiện
Definition
Noun: - Higher-order brain region: The association cortex refers to areas of the cerebral cortex that are not primarily dedicated to basic sensory processing (like vision or touch) or direct motor output. Instead, these regions are involved in integrating and interpreting information from multiple sensory areas and other brain regions to enable complex cognitive functions.
Usage
- The term is used in neuroscience, psychology, and medicine to describe the parts of the brain responsible for complex thought, planning, memory, and language.
- It is often discussed in contrast to primary sensory or motor cortices.
- Example: "Damage to the can result in disorders like apraxia or agnosia, where basic senses are intact but the ability to understand or use the information is impaired."
Examples
- The prefrontal is crucial for executive functions such as decision-making and social behavior.
- Studies show that the parietal integrates visual and spatial information.
- Neurons in the have longer response latencies, suggesting a role in higher-order processing.
Advanced Usage
- "Multimodal association cortex": Refers to areas that receive and combine input from multiple sensory modalities (e.g., sight, sound, touch) to form a unified perception.
- Example: The temporoparietal junction is a multimodal association cortex area involved in attention and social cognition.
- "Unimodal association cortex": Refers to areas adjacent to a primary sensory cortex that process information within a single sensory modality at a more complex level.
- Example: The visual association cortex further analyzes shapes and motion after initial processing in the primary visual cortex.
Variants and Related Words
- Association area (n): A synonym often used interchangeably with association cortex.
- Example: The brain's association areas are the last to fully mature in human development.
- Heteromodal cortex (n): A technical term similar to multimodal association cortex.
Synonyms
- Association area: The most direct synonym.
- Higher-order cortex: Emphasizes its role in complex processing.
- Integrative cortex: Highlights its function in combining information.
Related Concepts (Not Phrasal Verbs or Idioms)
- Executive function: A key set of cognitive processes largely managed by the prefrontal association cortex.
- Agnosia: A deficit often linked to damage in specific sensory association areas, where a person cannot recognize objects despite normal sensation.
- Apraxia: A disorder frequently associated with parietal association cortex damage, involving difficulty in executing learned movements.
Noun
- cortical areas that are neither motor or sensory but are thought to be involved in higher processing of information