Measures the (gross) electrical activity of the brain.- traces electrical impulses under the skull by attaching electrodes to the scalp.
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MRI Scans (magnetic resonance imaging)?
Precise way to scan the brain, shows more detail of the soft tissue. Patients lie in large tunnel surrounded by large magnet which generates a powerful magnetic field. Produces a 2D image.
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fMRI scans (functional magnetic resonance imaging)?
shows areas of brain being used in tasks. Measures brain activity by detecting changes in oxygen + blood flow around the brain= BOLD (blood oxygen level development) imaging
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What two halves is the brain divided in ?
Right and left Hemispheres.
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What does the left Hemisphere control?
controls right side of the body. responsible for language, speaking, understanding+ Reasoning
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What does the right Hemisphere control?
Controls most of the left hand side of the body. Specialises in tasks, i.e- drawing, creativity + intuitive tasks.
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Contralateral control?
Contra=opposite lateral= side
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What is the brain part of?
Central nervous system along with the spinal cord. + Brain=processes info+controls what we do
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Frontal lobe?
Motor functions, problem solving, spontaneity, memory, control + social + sexual behaviour.
Visual processing centre of mammalian brain, contains most of the anatomical region of visual cortex.
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Parietal lobe?
Process sensory info, interpreting visual info, processing language + maths
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Cerebellum?
Receives info from sensory system, spinal cord. co-ordinates voluntary movements, i.e- posture + balance.
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Corpus Callosum?
Two hemispheres are connected. bundle of nerve fibres, allows transmission of info.
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What would occur if the Corpus Callosum wasn't present?
Info not be able to pass from one hemisphere to the other. Info would become stuck in the hemisphere that had received the info.
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Hearing?
Each ear receives sound from just one side, sends 90% of input to other side of brain.
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Touch?
Crosses over= info from right hand goes to left hemisphere + vice versa= Contralateral control.
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Vision?
input from left half of each eye goes to right hemisphere + input from right half of each eye goes to left hemisphere
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Language?
Language located in left hemisphere. Broca's responsible for speech production.
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The effect split brain had on Severity of seizures?
Does NOT cure epilepsy but reduces severity of seizures. Sperry did not perform this operation on his patients it had already been done by Vogal + Bogen
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Delay of Gratification?
Terminology used by psychologists implying 'resisting temptation.
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Delay of Gratification strategies - cognitive control?
Eigasti et al - cognitive control can be used to help delay gratification + control impulsivity. (suppress inappropriate thoughts+ actions).
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Hot cues?
Things that are most appealing about object/situation.
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Cool cues?
Aspects of the object/situation that are not appealing.
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Whats did Metcalfe and Mischel et al (1999) suggest?
That the cool system is based on cognitive control + hot system is released to desires +emotions
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Ventral striatum?
Desire + immediate rewards are linked with ventral striatum in limbic system (emotions)
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Inferior Frontal Gyrus?
Cognitive control is linked to the inferior frontal gyrus in the prefrontal cortex.
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I.
c
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Participants?
11 p's(male+female). All=severe epilepsy+undergone surgery (split brain) + right-handed.
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Procedure?
certain equipment produced to present equipment in 1 hemisphere. visions divided to left+right vision field, hands hidden from own view. silence during study.
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What were the 4 main types of tests conducted?
1). Visual Tests. 2). Tactile Tests. 3). Visual and Tactile Tests. 4). Tests of the right Hemisphere.
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Other cards in this set
Card 2
Front
MRI Scans (magnetic resonance imaging)?
Back
Precise way to scan the brain, shows more detail of the soft tissue. Patients lie in large tunnel surrounded by large magnet which generates a powerful magnetic field. Produces a 2D image.
Card 3
Front
fMRI scans (functional magnetic resonance imaging)?
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