AP Psychology Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 530

What is the corpus callosum?

A brain area involved in language comprehension

A hormone

A set of glands

The large band of neural fibers connecting the two brain hemispheres

The corpus callosum is fundamentally a large band of neural fibers that serves as a critical connector between the left and right hemispheres of the brain. Its primary function is to facilitate communication between these two halves, allowing them to share information and coordinate their activities. This connectivity plays a vital role in integrating functions such as sensory processing, motor control, and cognitive tasks.

Understanding the importance of the corpus callosum is essential in the field of psychology, particularly in studies relating to lateralization of brain function, where certain cognitive processes may be more dominant in one hemisphere than the other. Damage to the corpus callosum can lead to a range of neurological conditions that demonstrate how inter-hemispheric communication is crucial for normal brain function.

The other options describe different entities unrelated to the structure and function of the corpus callosum. Therefore, recognizing the specific role and definition of the corpus callosum is key in understanding its significance in the brain’s anatomy and functionality.

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