Describe two methods of research for studying neural function (describe at least one that uses the behavioral or cognitive approach). How do these methods complement one another? What are the limitations of each method? Be sure to describe the methods thoroughly and to compare them with each other, this is an essential part that often is missing for this DQ

ANSWER

Two method of research for studying neural function of brain.

1. EEG-ELECTROENCEPHALOGRAPHY

It is major electrical functions of the brain which gone through neural function. Mostly EEG is used in cognitive neuroscience research.

It's signals indicate two types of brain function like event-related and spontaneous.

EEG used in clinical research to analysis Seizure. Spontaneous EEG indicate neurological respond which appear inexcusable. Many research has been done to know that how is spontaneous EEG measured brain functioning, and influence cognitive function. EEG untangle the design of working relatedness and synchronisation among brain area during consciousness.

Event- related with particular thoughts. Event-related functioning has two categories such as time locked averaging and spectral analysis. Time-locked technics discover invoke functioning such as noise in the brain. Spectral analysis or technique is time shift unvarying in both the frequency and time. Through this we can know that how brain actually changed accordingly. All of our feeling and thoughts comes from electrical strength through neurones.

2. FMRI (functional magnetic resonance imaging)

It is an advanced technique of neuroimaging. It has become the advanced technique in cognitive neuroscience study, because it has low radiation and easily available. some brain activities like blood flow and oxygen supply to the central nervous system.

The FMRI signals related with variance medium are corresponding to the cerebral blood capacity. FMRI method provide approximately powerful signal. Through FMRI researcher use "arterial spin labelling" two hydrogen focal point in the arterial blood and show the image of blood-distribution.

It has no risk, through this we can analysis brain functions safely.

EEG AND FMRI COMPARE -

-Both are using for brain imaging to study neural function of the brain.

FMRI used for neural functioning which is based on hemodynamic changes in the brain. It is an indirect method, while EEG is a direct method to study neural functioning. Both are responsive method to modification of synaptic activity. Both can distinguish high mundane structural decision.

Both can provide new knowledge into the congruence operant.

LIMITATIONS- The mean issue is EEG and MMRI is the the standard of EEG recorded in the scanner. The main limitation in FMRI is it can only record blood flow neurones in the brain not all neurones which are connected with other activities. It is much expensive technique. During analysis of brain function individual have to be still which is not possible every time. Because a person is thinking all the time and due to this noise occur in the brain.

The main issue is in the EEG is that it is impossible to recognised that from where electrical activity is coming, it is from cortex or deeper brain.