Like a patient with depression, the market is presently focusing only on the negatives.

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"My aim was to symbolise what is going on in the mind of patient during the depression and mania, " Marwah tells me.

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With depression, for example, research suggests patient preference influences how well someone is able to both start and engage a treatment.

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For example, one home made no plans to monitor a patient's use of two anti-psychotic drugs and one depression medication, even though the drugs could have serious side effects.

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The devices, which induce a seizure by delivering an electrical current to a patient's brain, are used to treat intractable cases of depression, as well as bipolar disorder, schizophrenia, and other mental disorders.

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But some doctors are worried that harm will spill over to other patient groups, given the rampant off-label use of antipsychotics for treating ailments such as depression, Alzheimer's symptoms and anorexia.

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