Problem 2 - Abnormal Psychology: An Integrative Approach

Question

Identify the following symptoms of dementia from the descriptions: (a) facial agnosia, (b) agnosia, and (c) aphasia. She can no longer form complete, coherent sentences.

Step-by-Step Solution

Answer

The symptom is aphasia.

Step 1: Identify the Symptom

In this step, we need to assess the description given: She can no longer form complete, coherent sentences. This symptom is related to difficulties with language, an essential part of communication.

Step 2: Understand Aphasia

Aphasia is a condition that affects a person's ability to communicate. It typically results in difficulties in forming sentences, finding the right words, or comprehending language.

Step 3: Match the Description to Aphasia

Given that aphasia involves trouble with forming sentences and the patient can no longer form complete, coherent sentences, this description matches the definition of aphasia.

Step 4: Clarify Other Terms

To rule out confusion with other terms, 'agnosia' is a general term for the inability to recognize objects, people, or sounds, and 'facial agnosia' is specifically about the inability to recognize faces, neither of which match the symptom of forming sentences.

Key Concepts

Aphasia

Aphasia is a condition often resulting from damage to parts of the brain responsible for language. It affects a person's ability to express or understand verbal and written communication. Here's a simple way to understand it:

• Individuals may struggle to speak with fluency. They might use incorrect words or have trouble finding the right words.
• There can be significant difficulty in understanding spoken or written language.
• Some people with aphasia might not be able to form complete, coherent sentences, which is crucial for communication.

It's essential to note that aphasia doesn't affect intelligence. It's a communication issue, not a cognitive one. People with aphasia often know what they want to say, but they can't always express it clearly. Brain injuries, such as those caused by strokes, are common causes of aphasia. Assistance from speech therapists can help individuals improve their communication skills.

Facial Agnosia

Facial agnosia, also known as prosopagnosia, is a specific type of agnosia that affects the ability to recognize familiar faces. Here's what makes it unique:

• Individuals may identify features such as eyes, noses, or mouths normally, but struggle to put them together to recognize the face as a whole.
• This condition can make social interactions challenging since recognizing family members or close friends can become difficult.
• It doesn't affect the memory; rather, it's an issue of perception, resulting from abnormalities in the right fusiform gyrus of the brain.

Facial agnosia is sometimes present from birth, in which case it's known as congenital prosopagnosia. In other cases, it can result from brain damage due to injury or neurological conditions. Affected individuals might rely on other identifiers like voice, clothing, or other personal characteristics to recognize people.

Agnosia

Agnosia is a broad term referring to an inability to process sensory information, typically resulting from brain damage. While facial agnosia is specific to recognizing faces, agnosia can affect various senses:

• Visual agnosia hinders the ability to recognize familiar objects despite having functional vision.
• Auditory agnosia involves difficulties in recognizing sounds, even though hearing is intact.
• Tactile agnosia pertains to the inability to identify objects by touch, despite the sense of touch being functional.

Agnosia is often mistaken for memory loss but it's actually an issue with sensory processing in the brain rather than recalling information. It highlights the importance and complexity of how our brains interpret the world around us.