Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Signal transmission refers to how information is communicated within and between neurons through electrical impulses and chemical messengers called neurotransmitters.
Chemical messengers that transmit signals between neurons by binding to specific receptor sites on the receiving neuron.
Excitatory and Inhibitory Signals: Excitatory signals increase the likelihood of a neuron firing, while inhibitory signals decrease this likelihood. Both are essential for maintaining balance in signal transmission.