What happens during Afterhyperpolarization?

Afterhyperpolarization, or AHP, is the hyperpolarizing phase of a neuron’s action potential where the cell’s membrane potential falls below the normal resting potential. This is also commonly referred to as an action potential’s undershoot phase.

What is the purpose of Afterhyperpolarization?

Afterhyperpolarization (AHP) regulates the frequency and timing of action potentials in the mitral cells of the olfactory bulb: role of olfactory experience.

What is responsible for the Afterhyperpolarization following an action potential?

The slow after-hyperpolarization (AHP) in many cells, which follows bursts of action potentials, often results from the activation of calcium-dependent potassium currents flowing through SK channels.

What happens during repolarization?

Repolarization is a stage of an action potential in which the cell experiences a decrease of voltage due to the efflux of potassium (K+) ions along its electrochemical gradient. This phase occurs after the cell reaches its highest voltage from depolarization.

What is the afterhyperpolarization phase of a neuron?

Afterhyperpolarization, or AHP, is the hyperpolarizing phase of a neuron’s action potential where the cell’s membrane potential falls below the normal resting potential. This is also commonly referred to as an action potential’s undershoot phase.

What happens when you change the amplitude of a wave?

As another example, changing the amplitude from 1 unit to 4 units represents a 4-fold increase in the amplitude and is accompanied by a 16-fold (4 2) increase in the energy; thus 2 units of energy becomes 16 times bigger – 32 units.

What does amplitude, period and vertical shift mean?

In words: the 2 tells us it will be 2 times taller than usual, so Amplitude = 2. the usual period is 2π, but in our case that is “sped up” (made shorter) by the 4 in 4x, so Period = π/2. and the −0.5 means it will be shifted to the right by 0.5. lastly the +3 tells us the center line is y = +3, so Vertical Shift = 3.

How to calculate amplitude, period, and frequency?

1 amplitude A = 2 2 period 2π/B = 2π/4 = π/2 3 phase shift = −0.5 (or 0.5 to the right) 4 vertical shift D = 3