Semantic Knowledge
Semantic Knowledge - Related Videos
13:37
Language: The N400 in Semantic Incongruity
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2023
Source: Laboratories of Sarah I. Gimbel and Jonas T. Kaplan— University of Southern California Understanding language is one of the most complex cognitive tasks that humans are capable of. Given the incredible amount of possible choices when combining individual words to form meaning in sentences, it is crucial that the brain is able to identify when words form coherent combinations and when an anomaly appears that undermines meaning. Extensive research has shown that certain scalp-recorded...
05:38
Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
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Cited by 4 •
2021
We present a protocol to explore the relative activation sequence of phonology and semantics in visual word recognition. The results show that consistent with interactive accounts, semantic and phonological representations may be processed interactively, and higher-level linguistic representations may affect early processing.
06:08
Exploring the Role of Deontic Reasoning and World Knowledge in Wason´s Selection Task
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2025
This study aims to analyze how people reason with and about normative rules, deontic reasoning, and the importance of world knowledge in subjects´ inferences. For this purpose, one of the main experimental paradigms in reasoning research was used: Wason´s selection task.
05:47
Evidence-based Knowledge Synthesis and Hypothesis Validation: Navigating Biomedical Knowledge Bases via Explainable AI and Agentic Systems
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Cited by 2 •
2025
This article describes RUGGED (Retrieval Under Graph-Guided Explainable disease Distinction), which integrates Large Language Model (LLM) inference with Retrieval-Augmented Generation (RAG). It draws evidence from expert-curated biomedical knowledge bases and peer-reviewed biomedical publications to synthesize new knowledge from up-to-date information, identify explainable and actionable predictions, and pinpoint promising directions for hypothesis-driven investigations.
08:17
A Semantic Priming Event-related Potential (ERP) Task to Study Lexico-semantic and Visuo-semantic Processing in Autism Spectrum Disorder
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Cited by 4 •
2018
This paper describes a semantic priming ERP task using within-modality pairs of pictures and words to investigate semantic processing in individuals with autism spectrum disorder (ASD).
FAQs
Related concepts are represented as interconnected meanings, allowing activation of one concept to facilitate retrieval of another. For example, accessing one meaning may make associated information more available during language comprehension or reasoning. This interconnected organization helps explain why knowledge can be retrieved efficiently when a new word, object, or idea is linked to previously stored concepts.
Schemas organize related concepts into broader structures that guide how people interpret and apply knowledge across contexts. Rather than treating each fact independently, a schema helps connect information and support consistent understanding of familiar situations. In psychology, this organization is relevant to explaining how people use stored meanings when interpreting language, categorizing objects, or reasoning.
The accessibility of a stored meaning affects how readily a person can recognize words, understand language, categorize objects, and reason about the world. Interconnected representations may make related information easier to retrieve, whereas less accessible knowledge may hinder these activities. Studying accessibility therefore helps clarify how learning and memory retrieval contribute to everyday cognitive performance.
Researchers can examine how people recognize words, interpret language, categorize objects, and reason using general concepts and relationships. These activities reveal whether relevant meanings and connections are available for retrieval and application. Assessment of such representations can therefore provide evidence about the organization and accessibility of stored knowledge, rather than only documenting memories of individual experiences.
Learning depends partly on connecting new information with organized meanings and existing conceptual relationships. When concepts are structured so that related information can be activated, learners may apply knowledge across contexts rather than treat each fact in isolation. Psychological research on semantic knowledge can therefore help explain how conceptual development supports understanding, categorization, language use, and reasoning.
Research in these areas can reveal how changes in the organization or accessibility of stored meanings affect cognition. Studying recognition, language comprehension, categorization, and reasoning may show which aspects of semantic representations remain available or become difficult to retrieve. This makes semantic knowledge a useful framework for examining cognitive aging and disorders that affect memory or language.