Understanding Memory and Engrams

What is the term used to describe the physical basis of memory storage in the brain?

• Cerebrum

• Memogram

• Engram

• Neurogram

What is a fundamental unit of physical memory substrate?

• Gene

• Engram

• Neuron

• Synapse

Who coined the term 'engram'?

• Richard Simmons

• Sigmund Freud

• Karl Lashley

• Donald Hebb

What experimental paradigm is commonly used to study memory formation?

• Classical conditioning

• Operant conditioning

• Fear conditioning

• Habituation

What are immediate early genes used as markers for?

• Protein synthesis

• Inflammation

• Cell death

• Memory encoding

What role do immediate early genes play in memory?

• None of the above

• Signal memory encoding

• Suppress memory formation

• Induce memory loss

What is the primary challenge in isolating memory traces for study?

• Neurons do not glow naturally

• Memory traces are too small

• Multiple memories can form simultaneously

• All of the above

Is the activation of engram neurons necessary and sufficient for memory recall?

• Both necessary and sufficient

• Neither necessary nor sufficient

• Sufficient only

• Necessary only

What determines which neurons become part of an engram?

• Their location in the brain

• Their size

• Their intrinsic excitability

• The number of synapses they have

What mechanism ensures the constant size of engrams?

• Neurotransmitter levels

• Neuronal excitability

• Synaptic strength

• Gene expression