What Is the Capacity of Long-Term Memory

question 240

Multiple Choice

What is the capacity of long-term memory?

• A) it depends upon the ability of the person to process relevant information
• B) limited neurologically to 4 billion engrams
• C) essentially unlimited
• D) seven plus or minus two items

---

Definitions:

Acetylcholine

A neurotransmitter in the nervous system that plays a critical role in muscle contraction and the modulation of alertness, memory, and learning.

Norepinephrine

A neurotransmitter and hormone important in the body's response to stress, affecting attention, heart rate, and other physiological functions.

Histamine

An organic nitrogenous compound involved in local immune responses, as well as regulating physiological functions in the gut and acting as a neurotransmitter.

Threat Simulation Theory

A theory suggesting that dreaming serves an evolutionary purpose of practicing how to behave in potentially dangerous situations.