Nobody downloaded yet

The role of the brain in addiction - Essay Example

Comments (0) Cite this document
Addiction may be defined as “habitual psychological and physiological dependence on a substance or practice beyond one's voluntary control.” The various neurotransmitters like dopamine and reward pathways linked to the limbic system play an important role in addiction…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94.7% of users find it useful
The role of the brain in addiction
Read TextPreview

Extract of sample
"The role of the brain in addiction"

Download file to see previous pages Photoreception and Signal Transmission: The photoreceptor cells of the retina are the cones and rods. Light stimulus causes changes in the visual chemical of the cones and rods producing a receptor potential. This passes through the bodies of the rods and cones and acts at the synapses to induce a signal in the bipolar cells. This signal is then transmitted to the ganglion cells. The axons of the ganglion cells leave the eyeball posteriorly to become the optic nerve. The two optic nerves enter the cranial cavity and join to form the optic chiasma. In the optic chiasma, the axons from the nasal (medial) halves of the retinas cross over to the opposite sides.
From the optic chiasma on either side of the brainstem, the optic tracts continue. The optic tracts relays information to the LGB (lateral geniculate body) of the thalamus. From here, information is carried to the occipital lobes of the cerebral cortex, where the information is perceived as conscious vision. Due to the crossover, the right visual field is perceived within the left hemisphere, and the left visual field is perceived within the right hemisphere (Lesson assignment, n.d.)
The nervous pathways for sound
The neuron associated with the hair cells of the organ of Corti (located in the basilar membrane of the inner ear) carries the sound stimulus to the brainstem. Through a series of connections, the signal reaches Brodmann's area number 41, in the temporal lobe of the brain where the stimulus is perceived as sound. ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“The role of the brain in addiction Essay Example | Topics and Well Written Essays - 2000 words”, n.d.)
Retrieved de https://studentshare.org/biology/1535098-the-role-of-the-brain-in-addiction
(The Role of the Brain in Addiction Essay Example | Topics and Well Written Essays - 2000 Words)
“The Role of the Brain in Addiction Essay Example | Topics and Well Written Essays - 2000 Words”, n.d. https://studentshare.org/biology/1535098-the-role-of-the-brain-in-addiction.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Theories of Addiction Introduction Addiction is the process whereby an individual has lost power over addictive substances such as drugs, computer and activities such as gaming and shopping. People who are addicted find it hard to stop engaging themselves in those addictive activities.
11 Pages(2750 words)Essay
Glutamate and Addiction
When the person takes the drug or alcohol for the first time, the intention is only to ‘try’. The pleasure derived from these substances makes the individual take the drug again and again which triggers a reward circuit and causes addiction. Addiction is due to many complex neurobiological and physiological factors and understanding of these is important to treat and conduct research on pharmacotherapeutics.
6 Pages(1500 words)Essay
Addiction is a Brain Disease
Addiction Is a Brain Disease Over the years, the number of types of addiction has increased. An addicted person is said to be one who has no control over the things he/she does, uses or takes. It is not just in physical things such as alcohol but also anything else for example, shopping.
5 Pages(1250 words)Research Paper
Health Psychology High School Essay
injecting or smoking it) will increase its probability. One way of testing this claim is to examine the reinforcing properties of drugs in animals. Conventional reinforcers support bar pressing in animals, therefore if a drug maintains a response such as bar pressing in an animal, it is a reinforcing stimulus.
9 Pages(2250 words)Essay
Exposure to acute and chronic stress has been linked closely with the development of addiction and vulnerability to addiction relapse. Your task is to describe
This link will then be applied to the theories formulated with respect to behavioural addictions such as ‘Gambling’ and similarities and
20 Pages(5000 words)Essay
Moderen addictions, especially develop the potential dangerous of video and internet games
Modern day addictions such as internet addiction are officially termed as Internet Overuse Syndrome (IOS) or Internet Addictive Disorder (IAD) though it is not recognized by the American Psychiatric Association. The
20 Pages(5000 words)Essay
Internet addiction
It has also become the foremost unprecedented attraction to people who look for tiny things to escape their very own responsibilities. The fact that the internet has evolved into an addiction is scary but
4 Pages(1000 words)Essay
In addition, habits do not only include physical things we consume, such as drugs, but also include virtually anything. In addition, addiction is also known as a substance dependence or behavioral addiction
7 Pages(1750 words)Essay
With reference to neuropharmacological, psychological and social factors, explain why heroin addiction in so difficult to overcome. What therapeutic approaches can be used to treat this form of drug dependence
such a powerful high that normal life looks primitive and disinteresting after it and people are ready to waste years to match that first elusive feeling (Dickitter, 2004). So heroin addiction is obviously the toughest addiction to overcome and there is a number of social,
3 Pages(750 words)Essay
Article Critique 2
To reduce the prevalence of addiction in people, it is necessary to know the reason behind it. The article “Stress, Habits, And Drug Addiction: A Psychoneuroendocrinological Perspective”, written by L. Shwabe, A. Dickinson and O. Wolf, tries to find the physical and psychological reasons behind the development of addictive behavior in human beings.
5 Pages(1250 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic The role of the brain in addiction for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us