STRUCTURALAND
FUNCTIONAL
DIFFERENCES BETWEEN
MALE AND FEMALE
BRAIN
PROSUN DEY
ROLL NUMBER - 1012
DEPARTMENT OF PHYSIOLOGY
SERAMPORE COLLEGE
1
The differences between genders---extend
beyond what the eye can see….
• Psychological sex difference occurs due to interaction of genes,
hormones and social learning on brain development throughout the
lifespan…..
But
• brain morphology and function studies indicates that male and
female brains cannot always be assumed to be identical from either a
structural or functional perspective, and some brain structures are
sexually dimorphic………
26/01/2016 2
HISTORY
• Ideas of differences in the male and female brain circulated during the time of ancient Greek
philosophers around 850 B.C.
• In 1854, Emil Huschke discovered that "the frontal lobe in the male is all of 1% larger than that of the
female.
• Until around 21 years ago, scientists knew of several structural sexual dimorphisms of the brain, but
they did not think that sex had any impact on how the human brain performs daily tasks.
• Through fMRI and PET scan studies a great deal of information regarding the differences between
male and female brains and how much they differ in regards to both structure and function has been
uncovered
26/01/2016 3
HUMAN BRAIN
26/01/2016 4
Males have bigger brains—which doesn’t
mean they’re smarter
• Volume Around 1130cc In
Female,1260 cc In Male
• Males Brain Are 10% Larger
Than Female
• Skull Is 2% Greater In Male
26/01/2016 5
Female brain is
multi tasking --
Why?
26/01/2016 6
CERABRAL
HEMISPHERE
26/01/2016 7
26/01/2016 8
IN MALES
• Strong Left Hemisphere
Specialization For Verbal
Processing
• Strong Right Hemisphere
Specialization For Spatial
Processing
• Mostly Used Left Hemispheres
IN FEMALES
• Whereas Females Show Greater
Bi hemispheric Participation In
Both Verbal And Spatial
Processing
26/01/2016 9
EFFECT
(1) Lower Verbal Ability In Males
(2) Women Are More Capable Of Managing Several Information Flows
Simultaneously, While Men Get Irritated When They Have To Do
Several Things At The Same Time.
26/01/2016 10
CORPUS
CALLOSUM
26/01/2016 11
The Corpus Callosum Is A
Thick Band Of Nerve Fibers
That Divides The Cerebral
Cortex Lobes Into Left And
Right Hemispheres.
It Connects The Left And
Right Sides Of The Brain
Allowing For
Communication Between
Both Hemispheres.
The Corpus Callosum
Transfers Motor, Sensory,
And Cognitive Information
Between The Brain
Hemispheres.26/01/2016 12
At around the 26-week stage, girl fetuses generally start
developing A thicker corpus callosum
The brain inter-hemispheric connectivity was greater in
women's and girls' brains, whereas intra-hemispheric
connectivity was greater in the brains of men and boys
Men are able to separate information, stimulus, emotions,
relationships, etc. Into separate compartments in their
brains, while women tend to link everything together
Men see individual issues with parts of their brain, while
women look at the holistic or multiple issues with their
whole brain (both hemispheres).
IN MALES AND FEMALES…
26/01/2016 13
26/01/2016 14
LOBES
26/01/2016 15
26/01/2016 16
MALE
• Inferior Parietal Lobe Much
Larger
FEMALE
• Frontal And Temporal Lobe
Volume Is HIGHER In Which The
Areas Of Broca And Wernicke
Are present
26/01/2016 17
• Mental Mathematical Abilities,understanding And
Manipulating Spatial Perception Of Time And Speed, And
The Ability To Mentally Rotate 3-D Figures Are Higher In
Male
• Women Are More Attuned To Words And Sounds And Are
Normally Better At Learning Languages. This Is Also Why
Men Tend To Have A Harder Time Expressing Emotions
Verbally.
26/01/2016 18
WOMEN BRAIN TRANSFERS
DATA FASTER AND ATTAINTIVE
TO MULTIPLE ACTIVITIES
WHY?
26/01/2016 19
GREY,WHITE MATTER
AND
CONNECTIONS
26/01/2016 20
• Grey matter (or gray matter) is a major
component of the central nervous system,
consisting of neuronal cell bodies, neuropil
(dendrites and myelinated as well as
unmyelinated axons), glial cells (astroglia
and oligodendrocytes), synapses, and
capillaries.
• White matter is a component of the central
nervous system, in the brain and superficial
spinal cord, and consists mostly of glial cells
and myelinated axons that transmit signals
from one region of the cerebrum to another
and between the cerebrum and lower brain
centers.
26/01/2016 21
MALE
• Men Think More USING “Gray
Matter”,
• Male Brains Utilize Nearly
Seven Times More Gray
Matter For Activity
FEMALE
• Women Use More “White
Matter”.
• Female Brains Utilize Nearly
Ten Times More White Matter
26/01/2016 22
CONNECTIONS
• Male brains appear to be wired front to back with few connections
bridging the two hemispheres
• In females,the pathways criss-crossed between left and right
26/01/2016 23
HIPPOCAMPUS,AMYGDALA
AND
LIMBIC SYSTEM
26/01/2016 24
• Females Have A Larger Hippocampus And A Deeper Limbic System And
Dominant Left Ventromedial Prefrontal Cortex Than Males, Which Allows
Them To Feel The Full Range And Depth Of The Emotional Spectrum
Women Are More Emotional, But We All Knew That Already.
26/01/2016 25
Women Feel More Pain, But We All Knew That
Already
• Upon Experiencing Pain, Men’s
Right Amygdala Is Activated,
While It’s The Left Amygdala In
Women.
• Since The Left Amygdala Is
More Closely Associated With
“Internal Functions,” It Is
Thought That This Is Why
Women Experience Pain More
Acutely Than Men Do.
26/01/2016 26
WOMEN HAS MORE LONG TERM MEMORY
AND RECALL POWER
• Activation Of Hippocampus Is More Dominant On Left Side Of Female
While It Is More Dominant On Right Side In Males
• This In Turn Influences Cognitive Reasoning,women Use More Verbal
Strategies Than Men
26/01/2016 27
NEUROCHEMICAL
INFLUENCE ON MALE
AND FEMALE BRAIN
26/01/2016 28
oxytocin improves spatial memory
• Through Activation Of The MAP Kinase Pathway, Oxytocin Plays A Role In The
Enhancement Of Long-term Synaptic Plasticity
Women Are More Likely To Suffer From Mood Disorders
• Male Brains Synthesize Serotonin Far More Quickly Than Female Brains,
Which May Explain Why Women Are Far More Prone To Depression.
26/01/2016 29
Women handle stress better than men
Both males and females release the hormone oxytocin during stressful events.
But female estrogen combines with oxytocin to produce a calming effect,
whereas male testosterone only makes men more aggressive
Estradiol Influences Cognitive Function
specifically by enhancing learning and memory in a dose-sensitive manner. Too
much estrogen can have negative effects by weakening performance of learned tasks as well as
hindering performance of memory tasks; this can result in females exhibiting poorer
performance of such tasks when compared to males
26/01/2016 30
INTELLIGENCE
Despite the physical differences between the male and
female brain and how males and females utilize their
abilities there is NO IDENTIFIABLE DIFFERENCE
in intellectual ability between the male and female
brain.
26/01/2016 31
WHY WOMEN LOVE CHOCOLATE MORE..??
26/01/2016 32
Chocolate Helps The Body Generate SEROTONIN, Which Is The
Happiness Hormone That Regulates The Mood, Reduces Mood Swings
And That Even Prevents Depression!!
If Chocolate Assists In Making People Feel Better Then Why Do Only
Women Love Them So Much?
• The Hormonal Levels Of Women Keep Changing Every Now And Then
As A Result Of The Menstrual Cycle And This Makes Them More
Vulnerable To Mood Changes.
• Women Love Chocolate So Much Because It Helps Them Regulate Their
Mood As A Result Of The Hormonal Changes They Experience.
26/01/2016 33
Gender Difference Of Brain Helps Us To Know
• Which Disease Is Prone To Specific Gender
• Better Difference Between Males And Females
• It Also Helps The Parents To Guide Their Children Better
26/01/2016 34
CONCLUSION
ACKNOWLEDGEMENT
I Would Like To Thank All My Respected Teachers, Departmental
Staffs , My Seniors, Friends And My Parents For Their Help And
Support In Completion Of This Project.
Specially I would like to thank CHANDRIMA BHATTACHARYA &
DEBOJYOTI DAS for supporting me in this Project.
26/01/2016 35
REFERENCES
• Gini A, Larrivee D, Farisco M, Sironi VA Neuroscience and
Neuroeconomics 2015, 4:1-10
• Thomas GP, Jobst BC Medical Devices: Evidence and Research 2015,
8:405-411
• Bryukhovetskiy AS Journal of Neurorestoratology 2015, 3:39-55
• Vilotti S, Fabbretti E, Nistri A Journal of Receptor, Ligand and
Channel Research 2015, 8:31-41
26/01/2016 36
26/01/2016 37

Male Brain Vs Female Brain!

  • 1.
    STRUCTURALAND FUNCTIONAL DIFFERENCES BETWEEN MALE ANDFEMALE BRAIN PROSUN DEY ROLL NUMBER - 1012 DEPARTMENT OF PHYSIOLOGY SERAMPORE COLLEGE 1
  • 2.
    The differences betweengenders---extend beyond what the eye can see…. • Psychological sex difference occurs due to interaction of genes, hormones and social learning on brain development throughout the lifespan….. But • brain morphology and function studies indicates that male and female brains cannot always be assumed to be identical from either a structural or functional perspective, and some brain structures are sexually dimorphic……… 26/01/2016 2
  • 3.
    HISTORY • Ideas ofdifferences in the male and female brain circulated during the time of ancient Greek philosophers around 850 B.C. • In 1854, Emil Huschke discovered that "the frontal lobe in the male is all of 1% larger than that of the female. • Until around 21 years ago, scientists knew of several structural sexual dimorphisms of the brain, but they did not think that sex had any impact on how the human brain performs daily tasks. • Through fMRI and PET scan studies a great deal of information regarding the differences between male and female brains and how much they differ in regards to both structure and function has been uncovered 26/01/2016 3
  • 4.
  • 5.
    Males have biggerbrains—which doesn’t mean they’re smarter • Volume Around 1130cc In Female,1260 cc In Male • Males Brain Are 10% Larger Than Female • Skull Is 2% Greater In Male 26/01/2016 5
  • 6.
    Female brain is multitasking -- Why? 26/01/2016 6
  • 7.
  • 8.
  • 9.
    IN MALES • StrongLeft Hemisphere Specialization For Verbal Processing • Strong Right Hemisphere Specialization For Spatial Processing • Mostly Used Left Hemispheres IN FEMALES • Whereas Females Show Greater Bi hemispheric Participation In Both Verbal And Spatial Processing 26/01/2016 9
  • 10.
    EFFECT (1) Lower VerbalAbility In Males (2) Women Are More Capable Of Managing Several Information Flows Simultaneously, While Men Get Irritated When They Have To Do Several Things At The Same Time. 26/01/2016 10
  • 11.
  • 12.
    The Corpus CallosumIs A Thick Band Of Nerve Fibers That Divides The Cerebral Cortex Lobes Into Left And Right Hemispheres. It Connects The Left And Right Sides Of The Brain Allowing For Communication Between Both Hemispheres. The Corpus Callosum Transfers Motor, Sensory, And Cognitive Information Between The Brain Hemispheres.26/01/2016 12
  • 13.
    At around the26-week stage, girl fetuses generally start developing A thicker corpus callosum The brain inter-hemispheric connectivity was greater in women's and girls' brains, whereas intra-hemispheric connectivity was greater in the brains of men and boys Men are able to separate information, stimulus, emotions, relationships, etc. Into separate compartments in their brains, while women tend to link everything together Men see individual issues with parts of their brain, while women look at the holistic or multiple issues with their whole brain (both hemispheres). IN MALES AND FEMALES… 26/01/2016 13
  • 14.
  • 15.
  • 16.
  • 17.
    MALE • Inferior ParietalLobe Much Larger FEMALE • Frontal And Temporal Lobe Volume Is HIGHER In Which The Areas Of Broca And Wernicke Are present 26/01/2016 17
  • 18.
    • Mental MathematicalAbilities,understanding And Manipulating Spatial Perception Of Time And Speed, And The Ability To Mentally Rotate 3-D Figures Are Higher In Male • Women Are More Attuned To Words And Sounds And Are Normally Better At Learning Languages. This Is Also Why Men Tend To Have A Harder Time Expressing Emotions Verbally. 26/01/2016 18
  • 19.
    WOMEN BRAIN TRANSFERS DATAFASTER AND ATTAINTIVE TO MULTIPLE ACTIVITIES WHY? 26/01/2016 19
  • 20.
  • 21.
    • Grey matter(or gray matter) is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil (dendrites and myelinated as well as unmyelinated axons), glial cells (astroglia and oligodendrocytes), synapses, and capillaries. • White matter is a component of the central nervous system, in the brain and superficial spinal cord, and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers. 26/01/2016 21
  • 22.
    MALE • Men ThinkMore USING “Gray Matter”, • Male Brains Utilize Nearly Seven Times More Gray Matter For Activity FEMALE • Women Use More “White Matter”. • Female Brains Utilize Nearly Ten Times More White Matter 26/01/2016 22
  • 23.
    CONNECTIONS • Male brainsappear to be wired front to back with few connections bridging the two hemispheres • In females,the pathways criss-crossed between left and right 26/01/2016 23
  • 24.
  • 25.
    • Females HaveA Larger Hippocampus And A Deeper Limbic System And Dominant Left Ventromedial Prefrontal Cortex Than Males, Which Allows Them To Feel The Full Range And Depth Of The Emotional Spectrum Women Are More Emotional, But We All Knew That Already. 26/01/2016 25
  • 26.
    Women Feel MorePain, But We All Knew That Already • Upon Experiencing Pain, Men’s Right Amygdala Is Activated, While It’s The Left Amygdala In Women. • Since The Left Amygdala Is More Closely Associated With “Internal Functions,” It Is Thought That This Is Why Women Experience Pain More Acutely Than Men Do. 26/01/2016 26
  • 27.
    WOMEN HAS MORELONG TERM MEMORY AND RECALL POWER • Activation Of Hippocampus Is More Dominant On Left Side Of Female While It Is More Dominant On Right Side In Males • This In Turn Influences Cognitive Reasoning,women Use More Verbal Strategies Than Men 26/01/2016 27
  • 28.
    NEUROCHEMICAL INFLUENCE ON MALE ANDFEMALE BRAIN 26/01/2016 28
  • 29.
    oxytocin improves spatialmemory • Through Activation Of The MAP Kinase Pathway, Oxytocin Plays A Role In The Enhancement Of Long-term Synaptic Plasticity Women Are More Likely To Suffer From Mood Disorders • Male Brains Synthesize Serotonin Far More Quickly Than Female Brains, Which May Explain Why Women Are Far More Prone To Depression. 26/01/2016 29
  • 30.
    Women handle stressbetter than men Both males and females release the hormone oxytocin during stressful events. But female estrogen combines with oxytocin to produce a calming effect, whereas male testosterone only makes men more aggressive Estradiol Influences Cognitive Function specifically by enhancing learning and memory in a dose-sensitive manner. Too much estrogen can have negative effects by weakening performance of learned tasks as well as hindering performance of memory tasks; this can result in females exhibiting poorer performance of such tasks when compared to males 26/01/2016 30
  • 31.
    INTELLIGENCE Despite the physicaldifferences between the male and female brain and how males and females utilize their abilities there is NO IDENTIFIABLE DIFFERENCE in intellectual ability between the male and female brain. 26/01/2016 31
  • 32.
    WHY WOMEN LOVECHOCOLATE MORE..?? 26/01/2016 32
  • 33.
    Chocolate Helps TheBody Generate SEROTONIN, Which Is The Happiness Hormone That Regulates The Mood, Reduces Mood Swings And That Even Prevents Depression!! If Chocolate Assists In Making People Feel Better Then Why Do Only Women Love Them So Much? • The Hormonal Levels Of Women Keep Changing Every Now And Then As A Result Of The Menstrual Cycle And This Makes Them More Vulnerable To Mood Changes. • Women Love Chocolate So Much Because It Helps Them Regulate Their Mood As A Result Of The Hormonal Changes They Experience. 26/01/2016 33
  • 34.
    Gender Difference OfBrain Helps Us To Know • Which Disease Is Prone To Specific Gender • Better Difference Between Males And Females • It Also Helps The Parents To Guide Their Children Better 26/01/2016 34 CONCLUSION
  • 35.
    ACKNOWLEDGEMENT I Would LikeTo Thank All My Respected Teachers, Departmental Staffs , My Seniors, Friends And My Parents For Their Help And Support In Completion Of This Project. Specially I would like to thank CHANDRIMA BHATTACHARYA & DEBOJYOTI DAS for supporting me in this Project. 26/01/2016 35
  • 36.
    REFERENCES • Gini A,Larrivee D, Farisco M, Sironi VA Neuroscience and Neuroeconomics 2015, 4:1-10 • Thomas GP, Jobst BC Medical Devices: Evidence and Research 2015, 8:405-411 • Bryukhovetskiy AS Journal of Neurorestoratology 2015, 3:39-55 • Vilotti S, Fabbretti E, Nistri A Journal of Receptor, Ligand and Channel Research 2015, 8:31-41 26/01/2016 36
  • 37.