IB Psychology Topic 3.4.2 Cognitive Processes Revision Notes (SL/HL)

IB Psychology Topic 3.4.2 Cognitive Processes Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

Biological Factors in Cognitive Processes

Neurotransmitters may play a role in memory, such as acetylcholine (ACh) and spatial memory.
ACh mainly operates in the hippocampus.

Case study

Martinez & Kesner (1991)

Aim

to see what role ACh played in spatial memory

Method

Injected rats with 3 types of injections:

Scopolamine, to stop ACh (antagonist)
Physostigmine, which increases ACh because it blocks production of cholinesterase which cleans up ACh from synapses (agonist)
Third group was a placebo.

All rats underwent a maze.

Results

Rats injected with scopolamine made more mistakes, whereas rats with physostigmine made fewer mistakes
Therefore, ACh is a neurotransmitter that boosts spatial memory.

Note

Critical Thinking

True experiment increases internal validity.
ACh has been linked to Alzheimer's disease, indicating a possible role in memory.
It is an animal study. Can it be generalized to humans?

Cognitive Models

Multi-Store Model of Memory

Proposed by Atkinson & Shriffin (1968)
It posits that information flows through 3 stores, with each store having a different capacity and duration.
The first one is sensory memory, which holds one piece of information for a fraction of a second.
Short term memory has a limit of 7±2 items, and information is stored for around 30 seconds. then, we go to
Long term memory, which may have unlimited storage, but its information is subject to decay over time.

Nice try, unfortunately this paywall isn't as easy to bypass as you think. Want to help devleop the site? Join the team at https://revisiondojo.com/join-us. exercitation voluptate cillum ullamco excepteur sint officia do tempor Lorem irure minim Lorem elit id voluptate reprehenderit voluptate laboris in nostrud qui non Lorem nostrud laborum culpa sit occaecat reprehenderit

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

IB Psychology 3.4.2 Cognitive Processes Notes

Biological Factors in Cognitive Processes

Cognitive Models

Multi-Store Model of Memory

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Biological Factors in Cognitive Processes

Cognitive Models

Multi-Store Model of Memory

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

1. Concepts6 subtopics

2. Content4 subtopics

3. Contexts4 subtopics

4. Extensions (HL only)4 subtopics

IB Psychology 3.4.2 Cognitive Processes Notes

1. Concepts6 subtopics

2. Content4 subtopics

3. Contexts4 subtopics

4. Extensions (HL only)4 subtopics

Biological Factors in Cognitive Processes

Cognitive Models

Multi-Store Model of Memory

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Biological Factors in Cognitive Processes

Cognitive Models

Multi-Store Model of Memory

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account