Human memory system-By Harshit Agrawal

What will be covered?• Memory definition & classification• Understanding memory by behaviour• Three stage model of human memory• working memory model• Long term memory classification• Genetic memory

What is memory?

Encoding Storage Retrieval

Understanding memory & Learning from the

behavioural observations

Ref: Lili chin(doggydrwaing.net)

Extinction OF Learned behaviour

And this happens when reward is

seldom

Three stage memory model

Short term memory

Longer lived than sensory memory

Lives several seconds

With rehearsal lives longer

Working memory

Active use of both sensory and long term memory

Long term memoryLong Term Memory

Declarative Non Declarative

SemanticGeneral

Knowledge,Facts

EpisodicPersonal

Experiences,Events

Procedural memoryLearned skills

L

Genetic memory

• A big influencer

• Fobia , Talent, even diseases can pass down from ancestors

• A Nature Neuroscience study, 2013 shows mice trained to avoid a smell passed their aversion on to their “grandchildren".

• The study was done at Emory University School of Medicine

• The results were important for phobia and anxiety research.

• The animals were trained to fear a smell similar to cherry blossom.

• Mice's offsprings and their offsprings were "extremely sensitive" to cherry blossom and would avoid the scent, despite never having experienced it in their lives.

• Changes in brain structure were also found.

Curious Case of Kim Peek

• Known as “Megasavant”Diagnosed with FG Syndrome Linked to X chromosome abnormalityCausing low muscle tone and large headCool example of brain’s plasticityHe could read with both eyes separately in

3secCould remember 98% of what he read

REFRENCES:

• HTTP://ASPSYCHOLOGYBLACKPOOLSIXTH.WEEBLY.COM/WORKING-MEMORY-MODEL.HTML• HTTPS://WWW.YOUTUBE.COM/WATCH?V=UWKVPFZJWCE• NEUROSCIENCE: EXPLORING THE BRAIN BY BEAR AND CONORS• IIRO P. JÄÄSKELÄINEN, INTRODUCTION TO COGNITIVE NEUROSCIENCE, 2012• HTTP://WWW.HUMAN-MEMORY.NET/TYPES.HTML• HTTP://WWW.NATURE.COM/NEURO/JOURNAL/V17/N1/ABS/NN.3594.HTML• HTTPS://WWW.YOUTUBE.COM/WATCH?V=XXFA9SLOVAU&T=2180S