100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Section 1, Lecture 3 - Survey in Biopsychology Class Notes $7.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. State University Of New York - Stony Brook
  4.  
  5. PSY250

Class notes

Section 1, Lecture 3 - Survey in Biopsychology Class Notes
 0 view  0 purchase

Are you looking for a deep, structured, and clear understanding of biopsychology? Look no further! These meticulously crafted notes are your key to mastering the subject. Whether you're preparing for exams, seeking to enhance your understanding of complex topics, or simply want to study smarter, th...

[Show more]

Preview 1 out of 1  pages

Document information

  • November 11, 2024
  • 1
  • 2024/2025
  • Class notes
  • Xi chen
  • Section 1

Subjects

Written for

All documents for this subject (3)

Seller

avatar-seller
emmaalfarone

Content preview

Notes - Survey in Biopsychology

Action Potential
(lecture 3)

action potential (AP) - a rapid depolarization of the cell memb
+30~+50mV
Basic Properties of the Action Potential
1. threshold of excitation - the membrane potential that mus
potential to occur: PSPs adding together (summation)
2. all or none phenomena - APs happen or they don't, there
(diwerent than PSPs)


Ionic Basis Of The Action Potential
1. vhen threshold is reached, Noltage-gated ;a+ channels o
i. ;a+ ions are pushed into the cell by both electros
2. ;a+ ions rush into the neuron4 the membrane depolarize
i. depolari/ationkrising phase - membrane potential
3. ;a+ channels snap shut at the peaK of the action potentia
z. Noltage-gated 6+ channels open (potassium channels op
i. 6+ ions are nov pushed outside the cell by both e
diyusion
5. 6+ channels open as ;a+ channels close4 membrane repo
polari/ed Nalue - depolari/ation)
T. 6+ channels start to close near the resting membrane po
close)
7. the membrane hyperpolarizes as 6+ channels close
i. hyperpolari/ationkfalling phase - short period of tim
tial is more negatiNe than it is at rest


Blocked Sodium Channels
tetrodotoxin (XX?) - a potent neurotoxin that blocKs sodium ch
potential e.g. noNocaine is a sodium channel blocKer

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller emmaalfarone. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52355 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$7.99
  • (0)
Add to cart
Added