Final answer:
Macroelectrodes are used in the human brain primarily for neuromodulation in therapeutic and enhancement applications, such as Deep Brain Stimulation (DBS), brain-computer interfaces (BCIs), and neurofeedback techniques.
Step-by-step explanation:
Applications of Macroelectrodes Implanted in the Brain
Macroelectrodes implanted into the human brain are likely to be used to modulate neural activity for both therapeutic and enhancement purposes. Deep brain stimulation (DBS) involves the placement of electrodes in specific regions of the brain to potentially improve functions such as memory. However, it may also result in changes in personality. In addition to DBS, brain-computer interfaces (BCIs) allow for real-time modulation of neural activity, which can be employed for various purposes, including training in meditation, cognitive performance, creativity, and impulse control.
Neuromodulation methodologies range from non-invasive techniques like transcranial magnetic stimulation (TMS), which induces weak electric currents in the brain to address disorders like depression, to more advanced and invasive approaches where electrodes are implanted in the brain for controlling devices through thought, exemplified by developments in BCI technology.
Neurofeedback, utilizing EEG for real-time brain activity modulation, and advanced measurement techniques employing devices like SQUIDs in MEG studies also represent significant progress in the field of neuroscience and medicine, aiming at grasping and influencing brain activity more effectively.