Those with damage to Wernicke's area (in the temporal lobe), speak fluently and are grammatically correct, but their sentences have nonsensical meaning - problems with the semantics of their speech.

Wernicke's Aphasia

A textual unit that is composed of one or more words, parsed together and following some syntactical rules.

Sentence (linguistics)

The accuracy of a model refers to the correctness of the way it represents the semantics of the domain in the focus. 

Accuracy of a Validated Conceptual Model

the redundancy-freeness of a model means that no part of it is unnecessary. This means that none of the semantics that makes up the domain in focus should be unique and essential.

Redundancy-Freeness of a Validated Conceptual Model

The Conflict-Freeness of a model means that no part of it conflicts with another part. This means that none of the semantics that makes up the domain in focus should contradict one another. 

Conflict-Freeness of a Validated Conceptual Model

The completeness of a model means it contains all the parts needed to be whole. Parts of a conceptual model refer to the semantics apartof the domain in focus.

Completeness of a Validated Conceptual Model

Semantics is the specific aspect of a language's grammar focused on meaning. It involves the process of extracting and deriving meaning from words and their smallest meaningful units, known as morphemes.

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Grammar encompasses the structural rules and principles of a language. These overarching rules include both semantics, which deals with meaning, and syntax, which governs the organization of sentences.

Grammar

Morphemes are the smallest components of a language that carry specific meaning. They are constructed by combining one or more phonemes; for instance, the word "I" functions simultaneously as a single phoneme and a single morpheme.

Morpheme

Goldstein, E. B. (2014). Cognitive psychology: Connecting mind, research and everyday experience. Nelson Education.


Cognitive psychology: Connecting mind, research and everyday experience

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Semantics is a component of grammar that governs the process of deriving meaning from the smallest meaningful units of language (morphemes) and from words.

Semantics

Syntax is the component of grammar that dictates the rules for organizing words into coherent and meaningful sentences.

Syntax

The application of grammatical rules to a language's vocabulary enables the creation of novel and inventive expressions. This inherent flexibility allows for communication about a vast spectrum of subjects, encompassing both concrete concepts like immediate physical surroundings and abstract notions such as future plans, detailed instructions, or unseen planets. Furthermore, language provides the necessary framework to construct, organize, and articulate complex cognitive structures, including schemata and artificial concepts.

Expressive Power of Language

Syntax is a fundamental component of a language's grammar that dictates the rules for arranging and organizing individual words into coherent, structured sentences.

The smallest sequence of phonemes that can be combined to form some meaning (morphemes).

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