thumb|Language areas of the brain. The [[angular gyrus is represented in orange, the supramarginal gyrus is represented in yellow, Broca's area in blue, Wernicke's area in green, and the primary auditory cortex in pink.]]In neuroscience and psychology, the term language center refers collectively to the areas of the brain which serve a particular function for speech processing and production. Language is a core system that gives humans the capacity to solve difficult problems and provides them with a unique type of social interaction. Language allows individuals to attribute symbols (e.g. words or signs) to specific concepts, and utilize them through sentences and phrases that follow proper grammatical rules. The white matter fiber bunches were recognized to be important for language production after suggesting that it is possible to make a connection between multiple language centers. Although this area is in charge of speech production, the specific details of its role in the language system is unknown. The anterior region of Broca's area is involved in semantic processing, while the posterior region involves phonological processing (Bohsali, 2015). The whole of Broca's area has been shown to have a higher activation while doing reading tasks than other types of tasks.
In a simple explanation of speech production, this area approaches phonological word representation chronologically divided into segments of syllables which then is sent to different motor areas where they are converted into a phonetic code. Therefore, Wernicke's area is for understanding oral language. Besides Wernicke's area, the left posterior superior temporal gyrus (pSTG), middle temporal gyrus (MTG), inferior temporal gyrus (ITG), supramarginal gyrus (SMG), and angular gyrus (AG) participate in language comprehension. Therefore, language comprehension is not located in a specific area. Contrarily, it involves large regions of the inferior parietal lobe and left temporal. The left AG is activated in semantic processing that requires concept retrieval and conceptual integration. Also, the left AG is activated during problems of multiplication and addition requiring return of arithmetic factors in verbal memory. Thus, it is involved in verbal coding of numbers. The knowledge about the function of the insula in speech production comes from different studies with patients having speech apraxia. These studies have led researchers to learn of the involvement of different parts of the insula. These parts are the left anterior insula, which is related to speech production, and the bilateral anterior insula, which is involved in misleading speech comprehension. Children are diagnosed with dyslexia when more than one factor affecting learning (e.g. reading or writing) appears. When children diagnosed with dyslexia have difficulties in concrete cognitive functioning, this is called an assumption of specificity, and it aids in the diagnosis of dyslexia. Dyslexics not only experience learning difficulties, but also other secondary characteristics, such as having difficulties in organizing, planning, social interaction, motor skills, visual perception, and short-term memory. These characteristics affect personal and academic life. Dysarthria can be caused by a mechanical difficulty in the vocal cords, or neurological disease, and produces abnormal articulation of phonemes, such as using "b" in place of "p". This diffusion tensor is used for inferring white matter connectivity.