Gunakan MimeTex/LaTex untuk menulis simbol dan persamaan matematika.

Selamat datang, Pengunjung. Silahkan masuk atau mendaftar. Apakah anda lupa aktivasi email?

Desember 07, 2021, 09:15:58 AM

Masuk dengan nama pengguna, kata sandi dan lama sesi

Topik Baru

Artikel Sains

Anggota
Stats
  • Total Tulisan: 139668
  • Total Topik: 10408
  • Online Today: 54
  • Online Ever: 441
  • (Desember 18, 2011, 12:48:51 AM)
Pengguna Online
Users: 0
Guests: 25
Total: 25

Ikuti ForSa

ForSa on FB ForSa on Twitter

Penulis Topik: Autisme pada Hewan  (Dibaca 8725 kali)

0 Anggota dan 1 Pengunjung sedang melihat topik ini.

Offline syx

  • Global Moderator
  • Profesor
  • *****
  • Tulisan: 4.540
  • IQ: 341
  • Gender: Pria
    • Kliping Koran
Autisme pada Hewan
« pada: Agustus 05, 2008, 02:17:45 AM »
apakah ada kasus autisme pada hewan?

Offline reborn

  • Founder
  • Profesor
  • *****
  • Tulisan: 2.256
  • IQ: 322
  • Gender: Pria
  • ForSa
Re: Autisme pada Hewan
« Jawab #1 pada: Agustus 05, 2008, 01:02:11 PM »
Wah, bisa jadi menarik nih. Tapi gimana cara taunya hewan itu autis ya?
Ntar, gw mo cari2 dulu tentang ini.

Offline syx

  • Global Moderator
  • Profesor
  • *****
  • Tulisan: 4.540
  • IQ: 341
  • Gender: Pria
    • Kliping Koran
Re: Autisme pada Hewan
« Jawab #2 pada: September 18, 2008, 09:07:22 AM »
udah nemu pa blom? dari dulu ditungguin ga ada hasil gini...

Offline peregrin

  • Global Moderator
  • Profesor
  • *****
  • Tulisan: 538
  • IQ: 100
  • Gender: Wanita
  • 'truth' is a lonely thing (J.Gaarder)
Re: Autisme pada Hewan
« Jawab #3 pada: September 18, 2008, 10:02:38 AM »
Kutip
Autism is a neuropsychiatric disorder characterized by repetitive behaviors and by impairment in social interactions and communication skills. These symptoms can coexist with either enhanced or decreased cognitive abilities and skills.

nah, gimana cara mendiagnosa ini pada hewan?

tapi ini ada berita tentang animal model utk autism di ScienceDaily.
(kalau animal model, krn ini direkayasa genetik, kita bisa gunakan teknik molekular biologi utk melihat hasil transkripsi dan ekspresi gen yg kita interfensi. Jadi karakterisasi-nya ngga semata2 dari behaviour animal-nya).

----------------------------------------------------

First-ever Genetic Animal Model Of Autism


ScienceDaily (Dec. 9, 2007) — By introducing a gene mutation in mice, investigators have created what they believe to be the first accurate model of autism not associated with a broader neuropsychiatric syndrome, according to research presented at the American College of Neuropsychopharmacology annual meeting. This animal model could help researchers better understand abnormal brain function in autistic humans, which could help them identify and improve treatment strategies. Broader neuropsychiatric conditions include Fragile X, the most common cause of inherited mental impairment, and Rett Syndrome, a childhood neurodevelopmental disorder characterized by normal early development followed by slowed brain and head growth, seizures, and mental retardation.


Autism is a neuropsychiatric disorder characterized by repetitive behaviors and by impairment in social interactions and communication skills. These symptoms can coexist with either enhanced or decreased cognitive abilities and skills.

"Prior to this study we knew next to nothing about the mechanisms of autism in the brain," says study researcher Craig M. Powell, M.D., Ph.D., assistant professor of neurology and psychiatry at the University of Texas Southwestern Medical Center at Dallas. "With this research, we can study changes in the brain that lead to autistic behaviors and symptoms, which may help us understand more about progression and treatment of the disorder."

The research team, led by Thomas Südhof, M.D., professor and chairman of neuroscience at UT Southwestern, replaced the normal mouse neurologin-3 gene with a mutated neuroligin-3 gene associated with autism in humans. By doing so, the team was able to create a gene in the mice that is similar to the human autism disease gene. While the result amounted to a very small change in their genetic makeup, it perfectly mimicked the same small change occurring in some patients with human autism.

Dr. Powell studied the genetically altered mice and found that, when examined in behavioral tests that may reflect key signs of autism, they showed decreased social interaction with other mice; other traits, such as anxiety, coordination and pain sensitivity, were unaffected. These social interaction deficits, Dr. Powell says, are hallmark features of human autism. In addition, the mice showed enhanced spatial learning abilities, which may resemble the enhanced cognitive abilities in autistic savants (people who have a severe developmental or mental handicap as well as extraordinary mental abilities).

"These findings could be especially helpful in identifying novel treatment approaches. We already know that inhibitory chemical synaptic transmission from one neuron to the next is increased in this mouse model. Now we can test drugs that decrease this effect directly in the mice and ask whether this reverses their social interaction deficits," Dr. Powell says. "For now, the mainstay of autism treatment is still behavioral therapy. The earlier we can get patients involved with behavioral interventions, the better off people with autism will be." Dr. Powell adds that the model gives researchers insight into mouse brains which share important parallels with brains of living humans, which can only be studied in limited ways with the use of new brain imaging tools.
Free software [knowledge] is a matter of liberty, not price. To understand the concept, you should think of 'free' as in 'free speech', not as in 'free beer'. (fsf)

Offline peregrin

  • Global Moderator
  • Profesor
  • *****
  • Tulisan: 538
  • IQ: 100
  • Gender: Wanita
  • 'truth' is a lonely thing (J.Gaarder)
Re: Autisme pada Hewan
« Jawab #4 pada: September 18, 2008, 11:52:10 AM »
Ada satu artikel menarik nih di jurnal PLoS Biology, judulnya "Are Animals Autistic Savants?"  Isinya mengkritisi teori yang menyatakan adanya kesamaan behavior antara hewan dan autistic savants (autis yang punya kemampuan ekstraordinari, misalnya dalam musik dan matematika).

Artikelnya saya attach, bisa di-donlot atau dicari sendiri di jurnalnya (setahu saya, PLoS Biology ini open source). Ini teaser-nya:  ;D


Kutip
Are Animals Autistic Savants?

Vallortigara G, Snyder A, Kaplan G, Bateson P, Clayton NS, et al. (2008) Are Animals Autistic Savants? PLoS Biol 6(2): e42


Similarities in behaviour between autistic savants and animals have been suggested, most notably by Temple Grandin in her book Animals in Translation 2005, and this theory seems to have gained some consensus among other neuroscientists who are not specialists in animal cognition. Here we aim to discuss two specific parallels between the behavioural characteristics of animals and those of autistic savants that have been raised in relation to Grandin's book.

Autistic savants show extraordinary skills, particularly in music, mathematics, and drawing. Do animals sometimes show forms of extreme (though, of course, different) cognitive skills confined to particular domains that resemble those shown by autistic savants? We argue that the extraordinary cognitive feats shown by some animal species can be better understood as adaptive specialisations that bear little, if any, relationship to the unusual skills shown by savants.

It has also been argued that autistic savants “think in detail”, and that this is the key to their extraordinary skills. Do animals have privileged access to lower level sensory information before it is packaged into concepts, as has been argued for autistic humans, or do they process sensory inputs according to rules that pre-empt or filter what is perceived even at the lowest levels of sensory processing? We argue that animals, like nonautistic humans, process sensory information according to rules, and that this manner of processing is a specialised feature of the left hemisphere of the brain in both humans and nonhuman animals.

Hence, we disagree with the claim that animals are similar to autistic savants. However, we discuss the possibility that manipulations that suppress activity of the left hemisphere and enhance control by the right hemisphere shift attention to the details of individual stimuli, as opposed to categories and higher-level concepts, and can thereby make performance more savant-like in both humans and animals.


-- utk lebih detilnya silahkan baca artikelnya, menarik lho  :) ... baru tahu juga ada bidang ilmu yg namanya animal cognition  :D
« Edit Terakhir: September 18, 2008, 12:01:57 PM oleh peregrin »

 

Related Topics

  Subyek / Dimulai oleh Jawaban Tulisan terakhir
23 Jawaban
24871 Dilihat
Tulisan terakhir Juli 09, 2014, 04:55:05 AM
oleh Monox D. I-Fly
Quiz Seputar Hewan

Dimulai oleh raisuien « 1 2 3 » Biologi

31 Jawaban
18959 Dilihat
Tulisan terakhir September 17, 2009, 10:30:55 AM
oleh phice
12 Jawaban
9730 Dilihat
Tulisan terakhir Juni 10, 2010, 05:04:30 AM
oleh milmi
2 Jawaban
4690 Dilihat
Tulisan terakhir Juli 30, 2013, 01:52:01 PM
oleh Fariz Abdullah
16 Jawaban
11554 Dilihat
Tulisan terakhir Januari 04, 2016, 02:39:17 PM
oleh Monox D. I-Fly