Assignment 2 2025
(Answer Guide) -
Due 8 August 2025
QUESTIONS WITH 100%
VERIFIED AND
CERTIFIED ANSWERS.
, 1|Page
PYC4813 Assignment 2 2025 (Answer Guide) - Due 8 August 2025
VERIFIED AND CERTIFIED ANSWERS. WRITTEN IN REQUIRED FORMAT AND WITHIN
GIVEN GUIDELINES. IT IS GOOD TO USE AS A GUIDE AND FOR REFERENCE, NEVER
PLAGARIZE. Thank you and success in your academics.
UNISA, 2025
The Effect of Brain Damage on Language Abilities with Reference to Broca’s and
Wernicke’s Aphasia
Language is one of the most complex cognitive abilities of the human brain. It enables
individuals to communicate, express thoughts, and understand others. However, when
specific areas of the brain are damaged particularly those associated with speech and
language this can result in profound impairments known as aphasias. Among the most
well-documented aphasias are Broca’s aphasia and Wernicke’s aphasia, which arise
from damage to distinct brain regions responsible for different aspects of language
processing. These two types of aphasia illustrate the localization of language functions
within the brain, particularly in the left cerebral hemisphere, which is dominant for
language in most right-handed individuals and a large proportion of left-handed
individuals as well.
Brain damage leading to aphasia can result from various causes, including stroke
(cerebrovascular accident), traumatic brain injury, brain tumours, infections, or
neurodegenerative diseases such as Alzheimer’s. When blood flow to language areas
in the brain is disrupted, as in the case of an ischemic stroke, the resulting lack of
oxygen and nutrients leads to cell death and impaired function in the affected region
(Papathanasiou & Coppens, 2017). Understanding the effects of brain damage on
language requires examining both the anatomical location of the damage and the
resulting symptoms in language production and comprehension.
Broca’s aphasia, named after French physician Paul Broca, arises from damage to
Broca’s area, located in the posterior part of the left inferior frontal gyrus. This area is
critical for speech production, sentence formation, and grammatical processing.