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Final Exam Vocabulary

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Simon Fraser University
PSYC 221
Thomas Spalek

1 CHAPTER 2bNEUROCOGNITIONDissociationpattern of abilities and performance especially among braindamaged patients revealing that one cognitive process can be disrupted while another remains intact Double dissociationtwo patients show opposite patterns of disruption and preserved function further evidence that the cognitive processes are functionally and anatomically separateNeurona specialized cell that conducts neural information through the nervous system the basic building block of the nervous systemSynapsethe junction of two neurons the small gap between the terminal buttons of one neuron and the dendrites of another as a verb to form a junction with another neuronCerebral cortexneocortexthe top layer of the brain newest neo in terms of evolution of the species divided into left and right hemispheres the locus of most higherlevel mental processesCell assemblya group of neurons that through repeated excitation has become functionally organized into a circuit that provides a neural basis for perception learning and thinkingContralateralitythe principle that control of each side of the body is localized in the oppositeside cerebral hemisphere The fact that the left hand for instance is largely under the control of the right cerebral hemisphere illustrates the principle of contralateralityCerebral lateralizationthe principle that different functions or actions within the brain tend to be localized in one or the other hemisphere For instance motor control of the left side of the body is lateralized in the right hemisphere of the brainMagnetic resonance imaginga medical scanning technology that reveals anatomical structure esp of the brainFunctional MRI fMRIa use of MRI technology that provides online evidence about dynamic functional processes in the brainEventrelated potentials ERPminute changes in electrical potentials in the brain measured by EEG recording devices and related specifically to the presentation of a particular stimulus the research technique used for determining neural correlates of cognitive activityConnectionist modelsa computerbased technique for modelling complex systems A fundamental principle in connectionist models is that the simple neuronlike nodes or units that make up the system are interconnected
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