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
Summary (iPad) Introductory Psychology I - Brain & Behaviour CA$10.73
Add to cart
Quickly navigate to
Preview
  2.  
  3. The University Of Stirling (UoS)
  4.  
  5. The University Of Stirling
  6.  
  7. Introductory Psychology I (PSYU911)

Summary

Summary (iPad) Introductory Psychology I - Brain & Behaviour
 70 views  0 purchase
  • Course
  • Introductory Psychology I (PSYU911)
  • Institution
  • The University Of Stirling (UoS)
  • Book
  • Psychology

iPad notes of the topic of Brain & Bheaviour from the Introductory Psychology I module. Given by Dr. Elaine Cameron at The University of Stirling in the autumn semester of 2020. Based on the lectures, the book, and the seminars. Written by Bea Lume Nunes. Note: I passed with a first using these not...

[Show more]

Preview 2 out of 7  pages

Document information

  • No
  • 3
  • October 16, 2021
  • 7
  • 2020/2021
  • Summary

Subjects

  • brain
  • behaviour
  • neuroscience
  • psychology

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

More summaries for

  • Chapter 8 Lecture Notes Psychology 1200
  • Experimental Psychology, Full Summary, English
  • Complete summary of Experimental Psychology
All for this textbook (21)

Written for

  • The University of Stirling (UoS)
  • The University of Stirling
  • Introductory Psychology I (PSYU911)
All documents for this subject (14)

Seller

avatar-seller
Bealume

Content preview

, NEURONS : THE ORIGIN OF BEHAVIOUR
-
neurons are the building blocks of the nervous system


→
they process information recieved from the outside world , communicate with one -
another and send messages to the body 's muscles and organs

'
Glial cells play a role in brain function , facilitating the communicative activity of neurons by forming the myelin sheath




COMPONENTS OF A NEURON
dendrites




"µµRG)n÷÷"#bhfgggd
terminal branches
of axon
. neurons are complex structures composed of three parts :

myelin sheath
""



→ ceuboa




ftp.j?&aJggpgUyggfhf&fB
,



has functions such as protein synthesis energy production
-




µWgf§[ °MfYgg§WgfhB&
my ne
'
and metabolism




µ
.




-
+ need body contains the nucleus which houses chromosome ,

vesicles
-
sending neuron
synaptic gap that contain DNA

neurotra.IIII.ie
( 7- relieving
←←
neuron
-
surrounded by a porous cell membrane that allows molecules to flow into and out of the cell

glia cell product of a

-
most neurons the axon is covered by myelin sheath
µ → dendrites
, a
( oiigodendrocytes)


→ an axon insulated with myelin can move efficiently transmit signals
-
recieve Information from other neurons and relay it to the cell body

-
in demye.li hating diseases the myelin sheath deteriorates ,
.
→ axon




slowdown of transmission
causing a transmits information to other neurons muscles or
glands
-

,




-
neurons do not touch eachother -
this gap is called the synapse

MAJOR TYPES OF NEURONS
→ the transmission of Information across the synapse is fundamental to



.
there are three
communication between neurons types of major types of neurons :

NEURONS SPECIALIZED →
sensory neurons



- the size and shape of neurons vary considerably -
recieve information from the external world


. the Purkinje -
elaborate treelike assemblage of dendrites -
have specialized endings on their dendrites that recieve
signals for light , sound , touch and smell


- → motor neurons
prymidal cells -

long triangular cell body and a single long dendrite with many



smaller dendrites -

carry signals to produce movement


'
bipolar cells -
few dendrites and a
single axon -
these neurons have long axons that can stretch to muscles


→ interneurons


-
connect all neurons by creating small circuits to perform simple and complicated tasks




THE ELECTROCHEMICAL ACTIONS OF NEURONS
ELECTRICAL SIGNALLING Nat
& kt




J§ µ
^

+
'
the " "" " ' " " " "" t" " " " " "" "" ° " " " " " "" " " " "" the " " " " " "" °
"" " " s " " ""
9 " " " " "" " " "


→ the there high concentration of Kt inside the neuron and low concentration outside
in
resting states , is a




→ the concentration of Kt is controlled by channels in the axon membrane that allow the flow in and out of the neuron +
*



in the
resting state these channels are open and other molecules generally closed
-




a)
& Nat .
the action potential is an electrical signal but it only occurs when the electric shock reaches a cer tain level or threshold




|§ ② &
- -




and with the characteristics at the same
magnitude
[1%9%4%1]
→ e always occurs same




a) electric simulation of the neuron shuts down the Kt channels and opens the Nat channels , allowing Nat to enter the axon
Kt Nat

b) b) the refractory period after the action potential the channels return to their Kt to flow out the axon this leaves
in
original state , allowing the . an

Kt Nat




&µ µ µ
abundance of kt outside and Nat inside the cells



c) chemical pump then reverses the balance of by moving not out of the axon and kt into the axon another action
a ion ions -
it can now
generate potential


-

.
the myelin sheath which is made up of glial cells that coat and insulate the axon facilitates the transmission of the action potential
Nat
-
the breakpoints in the myelin sheath are called nodes of ranker
c)
Nat → the
charge jumps from node to node and this is called Salta tory conduction axon nodes of ranveer




⑧
it helps speed the flow of information down the axon




µTy÷z
-




myelin sheath
Kt

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 Bealume. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$10.73. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

56326 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
CA$10.73
  • (0)
Add to cart
Added