Which type of apraxia involves difficulty in planning and sequencing movements?

• A. Ideomotor apraxia
• B. Ideational apraxia
• C. Phonatory apraxia
• D. Speech apraxia

Answer: (B)

Ideational apraxia is characterized by a significant disruption in the ability to plan and execute a sequence of actions that require a series of movements. Individuals with this type of apraxia struggle not just with the execution of individual movements, but also with understanding the overall concept or sequence of actions needed to achieve a specific goal. This can include difficulties with tasks that require multiple steps or those that involve using tools or objects in a purposeful way.

In contrast, ideomotor apraxia specifically affects the ability to carry out movements on command while the general concept may still be understood. Phonatory apraxia refers to difficulties in planning and producing the sounds of speech, while speech apraxia (often referred to as verbal apraxia) relates specifically to challenges in articulating speech sounds, which is more about the production of speech than the broader planning and sequencing of movements. Thus, ideational apraxia is distinct in its emphasis on the planning and sequencing aspect of movement execution, making it the correct answer.