This essay will explore the depths of cognitive neuroscience, focusing on the most common methods of brain exploration with particular reference to non-invasive techniques, all also discussing ethical aspects. considerations on some more invasive methods within cognitive neuroscience. For many years, there has been an intense debate among neuroscientists regarding the inclusion of ethical considerations in cognitive neuroscience. While it is quite certain that invasive methods are the most effective for locating functions in the brain, they are also highly unethical and therefore less effective methods must be used for human participants , although sometimes it is more possible to use a non-human subject. in which case rats are regularly used. It is therefore the responsibility of neuroscientists to identify the most effective method of brain exploration for this particular purpose. Some of the most common non-invasive brain scanning techniques are EEG (electroencephalogram), fMRI (functional magnetic resonance imaging), and PET (positron). Topography of emissions). This trial will evaluate the effectiveness of these methods while comparing them to invasive methods in order to assess which of these methods may be the most suitable alternative to invasive techniques. In order to address the ethical considerations involved in cognitive neuroscience, the first method to PET, introduced in the late 1950s, was developed. This is a small amount of radioactive glucose (2-deoxyglucose) that is injected into the carotid artery and accumulates in the most active areas of the body, emitting gamma radiation. These signals are then picked up by the computer's sensors and transcribed into images of the brain, top...... middle of paper ...... In this case, it may be more appropriate to use a method slower like a PET or fMRI scan because they can give a more in-depth description of the activities occurring in the brain. A final consideration in this research is the combination of two methods, such as EEG and fMRI, as both offer undeniable strengths in their own right. Although EEGs are useful for measuring neuronal activities, fMRIs are useful for locating specific areas in the brain and for this reason, both methods can work together to provide a high-resolution image of the brain while EEG will allow the researcher to keep track of neuronal activities in the brain. Works Cited http://www.biomedresearches.com/root/pages/researches/epilepsy/eeg_fmri_and_pet.htmlhttp://en.wikibooks.org/wiki/Cognitive_Psychology_and_Cognitive_Neuroscience/Behavioural_and_Neuroscience_Methods#EEG