Brian Often Interrupts His Teacher While She Is Speaking and Frequently

question 11

Multiple Choice

Brian often interrupts his teacher while she is speaking and frequently forgets to complete his homework assignments.He also has difficulty taking turns in playground games with classmates.Brian most clearly exhibits symptoms of

• A) DID.
• B) OCD.
• C) PTSD.
• D) ADHD.

---

Definitions:

Threshold of Excitation

The minimum level of stimulus intensity required to activate a neuron and generate an action potential.

Electric Current

The flow of electric charge through a conductor.

Absolute Refractory

A period immediately following the transmission of an impulse in nerve or muscle in which a neuron or muscle cell cannot respond to any additional stimulus.

Period

Often refers to a length or span of time in a sequence of events or a specified interval in processes or phenomena.