Which of the following disorders is classified as a neurogenic speech disorder?

The classification of a neurogenic speech disorder refers to speech issues that arise from neurological conditions affecting the brain, nerves, or muscles responsible for speech production. Hesitation phenomena, which can manifest as disfluencies or breaks in speech rhythm, often stem from neurological issues, making them characteristic of neurogenic speech disorders.

In contrast, other disorders listed, such as fluency disorders, speech sound disorders, and articulation disorders, could be related to developmental, psychological, or other non-neurological origins. For instance, fluency disorders might include stuttering, which is not specifically neurogenic but rather can be influenced by a variety of factors. Similarly, speech sound disorder refers to difficulties in producing speech sounds, and articulation disorders involve the misproduction of specific sounds, which can occur for developmental reasons that are not necessarily neurological.

In summary, hesitation phenomena stand out as a disorder more directly linked to the neurological underpinnings of speech production, thereby qualifying it as a neurogenic speech disorder.