|
Title: Summation of postsynaptic potentials at the axon hillock Post by: aboadu on May 3, 2013 The figure below shows a single postsynaptic neuron that has synapses with four other neurons via their synaptic terminals. Two of the presynaptic neurons produce EPSPs on the postsynaptic cell (green, E1 and E2), and the other two produce IPSPs (red, I1 and I2).
The graph below shows the membrane potential measured at the axon hillock of the postsynaptic neuron. Each target indicates a change in the membrane potential at the axon hillock caused by a postsynaptic potential at one of the four synapses. Summation occurs when two or more postsynaptic potentials overlap in time; that is, one postsynaptic potential begins before the membrane has returned to resting potential after a previous postsynaptic potential. When such overlap occurs, the membrane potential measured at the axon hillock is the sum of the two (or more) overlapping postsynaptic potentials. Hope this helps ! Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: mahq58 on May 3, 2013 Can the picture be re-posted. I've been working on this question forever!!
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: bio_man on May 3, 2013 Because the size of the picture, the server wasn't able to upload it correctly. Will need to fix this bug.
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: mahq58 on May 3, 2013 Thanks for reply
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: bio_man on May 3, 2013 The best thing aboadu can do is repost the image, but have it resized.
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: Sonsational on May 5, 2013 I'd appreciate it if you could repost it as well.
Thank you! Edit: Never mind, I figured it out. It's: I2, E2, E1, I1, E2, E1 Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: bio_man on May 5, 2013 I'd appreciate it if you could repost it as well. Thank you! Edit: Never mind, I figured it out. It's: I2, E2, E1, I1, E2, E1 Could you post an image of the diagram, if possible? Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: Sonsational on May 9, 2013 Content hidden
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: saadupaadu on Oct 11, 2013 this was very quite helpful
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: rebekah94 on Dec 13, 2013 Thank you this was very helpful. ;D
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: kat88 on Apr 2, 2014 thanks
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: ladykaturay_51 on Apr 2, 2014 Thank you!!! I see bio_man a lot when i'm looking for answers. Thanks a lot!
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: Styles on Apr 18, 2014 Thank you
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: mkasten on Apr 27, 2014 Sure, here it is. This was so unbelievably helpful, thank you!Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: fthissite on Mar 22, 2020 I'm not sure why I have to write a comment. Screw this.
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: James Immordino on Apr 15, 2020 thank you
Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: ingramdre23@gma on May 5, 2021 The figure below shows a single postsynaptic neuron that has synapses with four other neurons via their synaptic terminals. Two of the presynaptic neurons produce EPSPs on the postsynaptic cell (green, E1 and E2), and the other two produce IPSPs (red, I1 and I2). The graph below shows the membrane potential measured at the axon hillock of the postsynaptic neuron. Each target indicates a change in the membrane potential at the axon hillock caused by a postsynaptic potential at one of the four synapses. Summation occurs when two or more postsynaptic potentials overlap in time; that is, one postsynaptic potential begins before the membrane has returned to resting potential after a previous postsynaptic potential. When such overlap occurs, the membrane potential measured at the axon hillock is the sum of the two (or more) overlapping postsynaptic potentials. Hope this helps ! Title: Re: Summation of postsynaptic potentials at the axon hillock Post by: ofuski10 on Jan 8, 2022 thank you
thank you Title: BFSF: Summation of postsynaptic potentials at the axon hillock Post by: anorton on Dec 12, 2023 Thanks!
Title: BFSF: Summation of postsynaptic potentials at the axon hillock Post by: ggg123 on Feb 18, 2024 Thx
|