Memory Functions and Types

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary purpose of a script in the context of Long-Term Memory (LTM) models?

To provide a model of stereotypical information required to interpret a situation (correct)

To establish type-subtype relationships between different breeds of dogs

To store instance-based information about specific dogs

To define the fixed and default attributes of a dog

What is the relationship between the 'DOG' and 'COLLIE' data structures?

DOG and COLLIE are unrelated data structures

COLLIE is a subtype of DOG (correct)

COLLIE is an instance of DOG

DOG is a subtype of COLLIE

What is the primary function of slots in a data structure?

To establish relationships between different data structures

To define the fixed and default attributes of a data structure

To provide a model of stereotypical information

To instantiate values for a specific instance of a data structure (correct)

What is the 'sound' attribute of the 'DOG' data structure instantiated with?

Bark Signup and view all the answers

What is the purpose of the 'entry conditions' element in a script?

To establish the conditions necessary for the script to be activated Signup and view all the answers

What is the 'Result' of the 'Script for a visit to the vet'?

Dog becomes better Signup and view all the answers

What is the 'Roles' element in the 'Script for a visit to the vet'?

Vet examines, diagnoses, treats Signup and view all the answers

What is the 'Props' element in the 'Script for a visit to the vet'?

Examination table, waiting room, medicine Signup and view all the answers

What is the primary function of sensory memory?

To act as a buffer for stimuli received through senses Signup and view all the answers

What is the approximate capacity of short-term memory?

7± 2 chunks Signup and view all the answers

What is the duration of rapid access in short-term memory?

~ 70ms Signup and view all the answers

What is the primary function of long-term memory?

To store knowledge for an unlimited period Signup and view all the answers

What is the duration of slow access in long-term memory?

~ 1/10 second Signup and view all the answers

What type of long-term memory stores serial memory of events?

Episodic memory Signup and view all the answers

What is the model used to represent semantic memory structure?

Semantic network Signup and view all the answers

What is the primary function of semantic networks in long-term memory?

To supports inference through inheritance Signup and view all the answers

Study Notes

Memory

Three types of memory functions: sensory memories, short-term memory or working memory, and long-term memory.
Selection of stimuli governed by level of arousal.

Sensory Memory

Buffers for stimuli received through senses.
Three types: iconic memory (visual stimuli), echoic memory (aural stimuli), and haptic memory (tactile stimuli).
Examples: sparkler trail, stereo sound.
Continuously overwritten.

Short-term Memory (STM)

Scratch-pad for temporary recall.
Characteristics:
- Rapid access (~70ms).
- Rapid decay (~200ms).
- Limited capacity (7±2 chunks).
Examples: phone numbers, random sequences.

Long-term Memory (LTM)

Repository for all our knowledge.
Characteristics:
- Slow access (~1/10 second).
- Slow decay, if any.
- Huge or unlimited capacity.
Two types:
- Episodic memory: serial memory of events.
- Semantic memory: structured memory of facts, concepts, skills.
Semantic LTM derived from episodic LTM.

Semantic Memory Structure

Provides access to information.
Represents relationships between bits of information.
Supports inference through inheritance.
Model: semantic network.

Models of LTM

Semantic Network:
- Inheritance: child nodes inherit properties of parent nodes.
- Relationships between bits of information explicit.
- Supports inference through inheritance.
Frames:
- Information organized in data structures.
- Slots in structure instantiated with values for instance of data.
- Type–subtype relationships (e.g., DOG-COLLIE).
Scripts:
- Model of stereotypical information required to interpret situation.
- Script has elements that can be instantiated with values for context (e.g., script for a visit to the vet).

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers the three types of memory functions including sensory memory, short-term memory, and long-term memory. It explains the characteristics of each type and provides examples.