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: It is not ethical to open people's [[brain]]s just to perform electrical stimulation to see what parts of the [[brain]] are involved in different processes. However, people who require [[brain]] surgery (for a variety of reasons) may consent to have this done for research purposes.
: Since [[neuron]]s send [[Impulse (Biology)|electrical impulses]] around the [[brain]] it's possible to cause these by touching an [[electrode]] against the [[brain]]. Patients who have consented to this have demonstrated that stimulating parts of the [[brain]] may make them think of a song or a childhood memory.
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Brain, page 69, GCSE Biology; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Brain, pages 138-40, GCSE Biology, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Brain, pages 152-153, 160-161, 166-167, 170-171, 182-183, 187, GCSE Biology; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f94 ''Brain, pages 171, 173, 178-9, 214, GCSE Biology; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Brain, pages 193, 194, GCSE Biology, CGP, AQA '']
==Beyond the Curriculum==
{{#ev:youtube|https://www.youtube.com/watch?v=pRFXSjkpKWA}}