What Are Morpheme in Cognitive Psychology?


Diego Sanchez

Morphemes are the smallest units of meaning in language. In cognitive psychology, morphemes are studied to understand the fundamental building blocks of language and how humans process it.

A morpheme can be a word or a part of a word that carries meaning. Let’s take a closer look at what morphemes are and their role in cognitive psychology.

Types of Morphemes

There are two types of morphemes: free morphemes and bound morphemes. Free morphemes can stand alone as independent words, while bound morphemes cannot.

Free Morpheme Examples:

  • Book
  • Cat
  • Jump

Bound Morpheme Examples:

  • -s (as in ‘cats’)
  • -ed (as in ‘jumped’)
  • -ing (as in ‘jumping’)

Bound morphemes can be further classified into two types: derivational and inflectional.

Derivational Morphemes

Derivational morphemes change the meaning of a word and create new words with different meanings. For example, the addition of -er to the verb ‘teach’ creates the noun ‘teacher’, which has a different meaning from the original verb.

Inflectional Morphemes

Inflectional morphemes do not change the meaning of a word but rather indicate grammatical information such as tense, number, or gender. For example, -s added to ‘cat’ indicates plural, while -ed added to ‘jump’ indicates past tense.

Morpheme Processing

Morpheme processing is an essential aspect of language comprehension and production. Cognitive psychologists study how humans process and recognize morphemes in language.

Morpheme Recognition

Morpheme recognition refers to the ability to identify and understand the meaning of individual morphemes in a word. For example, recognizing that the word ‘unhappy’ is composed of the prefix ‘un-‘ and the root word ‘happy’.

Morpheme Production

Morpheme production refers to the ability to use morphemes correctly when producing language. For example, using -s at the end of a noun to indicate pluralization.


In summary, morphemes are the smallest units of meaning in language and play a crucial role in cognitive psychology. Understanding how humans process and produce morphemes can lead to a better understanding of language acquisition and development. By breaking down language into its smallest components, we can gain insights into how humans learn, comprehend, and use language.