the human brain have voluntary and involuntary?
818872
voluntary and involuntary what? responses? in that case, yes. Voluntary would include movement, speech\nInnvoluntary would include sending messages to other organs (i.e. the lungs to breathe)
475825
Bird < human. The cerebrum is related to higher level processing. Humans have more cognitive abilities than birds, hence more cerebrum
225558
That question isn't quite right. A simple analogy to the working brain might be a moving car. Not just a part of the car is moving but all of it. You can train your brain to work better in certain aspects though. Evolution is still changing the way our brain works, for better or worse, it just adapts to the way we live.
451726
No, your soul is a metaphysical construct.  Being thus it cannot be assigned to the synaptic functions in the brain.
649112
The brain is an organ of the body, like any other organ, in that it has a distinctive structure and tissue types specific to the brain.  Thus, it is a biological entity.  Psychology is a study of our mental processes and behaviour, not the actual biology of the brain organ.
339989
I have always been fascinated by the way that processing in the brain leads to the experience of the mind. An understanding of this relationship has eluded science throughout the ages and i wanted to be involved in trying to advance our understanding of the brain-mind relationship. I should add that some people believe there is no such thing as the mind and that all we should be trying to study is the physical processing performed by the brain.
1017609
We have personal choice but this is usually governed by our Limbic System, which is a complex system of nerve pathways and networks in the brain that is involved in the expression of instinct and mood in activities of the endocrine and motor systems of the body. Among the brain regions involved are the Amygdala, Hippocampal formation, and the Hypothalamus.
905125
There are important structures in the base brain that control breathing, metabolism and other essential life sustaining issues.\n\nThe frontal is more Analytical thinking, refraining from saying odd things.  Emotional stuff.
251829
left hemipelegia. Remember, each hemisphere of the brain controls the opposite side of the body.
255438
I think action potentials is what you mean. but neurons in your body do not use different coding mechanisms to the ones in your brain
1064374
They are integrally tied in a unity of the physical and the unexplained.\n\nOur brain is....\nA convoluted, layered lump of micro-neuron pudding.\nFats and proteins forming electrochemical paths and branches.\nThe branches and paths develop loose circuits which react and modify themselves according to incoming sensory stimulus.\n\nSpontaneous interactions within the circuits, creating cascades of intangible formulations. A foundation of learned response and cause and effect experience allows the formulations to shape themselves into what we refer to as "thoughts". Thinking a volume of collective thoughts forges a "mind" or a "sentient consciousness". \n\nIf an individual's central nervous system is rendered defective, is not the mind affected as well? Of course.\n\nIn accompaniment with all this bio-stuff, is what we believe is a spirit or soul. The soul is part of God's realm and interacts with the sceintific brain in a constant struggle. This is the source of the "quiet thoughts". Your "concience"! If you can learn to "listen" to your spirit ALONG with your biological brain, you will acheive harmony.\nYour life will change.\n\nI hope this helps....I'm still working at it!
230369
The brain controls "lower" or involuntary activities such as heartbeat, respiration, and digestion - these are known as autonomic functions. The brain also controls "higher" order, conscious activities, such as thought, reasoning, and abstraction. The human brain is generally regarded as more capable of these higher order activities than any other species.\n\nThe human brain is thought to be the source of the conscious, cognitive mind. The mind is the set of cognitive processes related to perception, interpretation, imagination, and memories, of which a person may or may not be aware. Beyond cognitive functions, the brain regulates autonomic processes related to essential body functions such as respiration and heartbeat.\n\nExtended neocortical capacity allows humans some control over emotional behavior, but neural pathways between emotive centers of the brain stem and cerebral motor control areas are shorter than those connecting complex cognitive areas in the neocortex with incoming sensory information from the brain stem. Powerful emotional pathways can modulate spontaneous emotive expression regardless of attempts at cerebral self-control. Emotive stability in humans is associated with planning, experience, and an environment that is both stable and stimulating, especially during early developmental years.\n\nThe 19th century discovery of the primary motor cortex mapped to correspond with regions of the body led to popular belief that the brain was organized around a homunculus. A distorted figure drawn to represent the body's motor map in the prefrontal cortex was popularly recognized as the brain's homunculus, but function of the human brain is far more complex.\n\nThe human brain appears to have no localized center of conscious control. The brain seems to derive consciousness from interaction among numerous systems within the brain. Executive functions rely on cerebral activities, especially those of the frontal lobes, but redundant and complementary processes within the brain result in a diffuse assignment of executive control that can be difficult to attribute to any single locale.\n\nMidbrain functions include routing, selecting, mapping, and cataloguing information, including information perceived from the environment and information that is remembered and processed throughout the cerebral cortex. Endocrine functions housed in the midbrain play a leading role in modulating arousal of the cortex and of autonomic systems.\n\nNerves from the brain stem complex where autonomic functions are modulated join nerves routing messages to and from the cerebrum in a bundle that passes through the spinal column to related parts of a body. Twelve pairs of cranial nerves, including some that innervate parts of the head, follow pathways from the medulla oblongata outside the spinal cord.\n\nA definite description of the biological basis for consciousness so far eludes the best efforts of the current generation of researchers. But reasonable assumptions based on observable behaviors and on related internal responses have provided the basis for general classification of elements of consciousness and of likely neural regions associated with those elements. Researchers know people lose consciousness and regain it, they have identified partial losses of consciousness associated with particular neuropathologies and they know that certain conscious activities are impossible without particular neural structures.
249360
The brain completly controls the human body, It depends on the part of the brain damaged by the tumaor, for example damage to the cerebellum could cause cerebal palsy or complete paralysis. damage to the midulla oblongatta could prevent functioning of autonomic functions and require life support.
695189
A voluntary reaction is one that when a sensory neuron feels something, say heat, it sends a signal to the spinal cord, then to the brain, the brain makes the conscious decision to remove your hand and send the signal to do so back to the hand muscles.\n\nA reflex reaction is one that takes the sensory neuron's signal, takes it to the spinal cord to an interneuron and directly back to the muscle where it retracts without the brain even needing to take the time consuming decision process.
569852
What's the difference?\n\nDidn't the brain which engages in rational decision making also evolve?
264709
This is a really complicated question.  Personality is a concept that invloves several different things.  As far as where the parts of the brain that is used during thinking and some emotions, this is mostly the frontal lobe (and probably more specifically the prefrontal cortex).  That said, the brain is full of connections to all sorts of areas and something like personality is so broad that it would cover many different sections of the brain.
1150590
The brain's morphology is functionally diverse.  What I mean by this statement is that certain regions/lobes of the brain are devoted to certain activities.  Consciousness, for example, is a product of the activity of the cortex; while respiration (breathing) is derived from the pons/medulla, and vision is processed in the occipital lobe.  The functions of the regions are, for the most part, independent of each other; so, if you ablate one specific lobe of the brain (for example, the occipital), a person would not be able to see (though, yes, his/her eyes would function- but having no center to integrate visual stimuli to would render one blind just the same), but would still breath and think if those centers are unharmed.  The same is true if the brain region responsible for thought processes is ablated: the pons/medulla would still work, since breathing does not require consciousness (ie: you don't have to be conscious in order to breath; hence, you breath in your sleep).  This is also why a comatose person may still be capable of breathing on his/her own, though there may be no conscious thought.\n\nThis is an simplified example, however.  It should be noted that brain function in terms of neural networks and what regions are dependent on each other is not yet fully understood.  The advent of the functional MRI will help science better understand the brain's function in the near future.