#dlpfc

[neurosciencenews]

Magnetic Brain Stimulation Alters Negative Emotional Perceptions

Using magnetic stimulation outside the brain, a technique called repetitive transcranial magnetic stimulation (rTMS), researchers at University of Münster, Germany, show that, despite the use of inhibitory stimulation currently used to treat depression, excitatory stimulation better reduced a person's response to fearful images.

The research is in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging. (full access paywall)

[neurosciencenews]

How the Cortex Assigns Credit for Causality

When you do something right, you can't learn anything from your success without a system in the brain for assigning credit to whatever action led to the desired outcome.

The research is in Journal of Neuroscience. (full access paywall)

[trancekracht]

Wat gebeurt er in de hersenen bij hypnotherapie voor bindingsangst?

1. Inductie van een hypnotische staat Tijdens hypnotherapie wordt de cliënt geleid naar een staat van diepe ontspanning en gerichte aandacht. Deze staat lijkt op meditatie of “flow” en wordt gekenmerkt door trage hersengolven, met name theta‑golven (4–7,5 Hz), die geassocieerd zijn met ontspanning, emotie- en geheugensamenhang, en verhoogde suggestibiliteit. In deze toestand vermindert de…

[cilginfizikcilervbi]

İnsan Beynini Farklı Kılan Nedir?

İnsan Beynini Farklı Kılan Nedir?

İnsan Beynini Farklı Kılan Nedir? İnsan beynini, en yakın primat akrabalarımız da dahil olmak üzere diğer tüm hayvanlardan farklı kılan nedir? Yale araştırmacıları, dört primat türünün prefrontal korteksindeki hücre tiplerinin bir analizinde, türe özgü – özellikle de insana özgü – özellikleri belirlediler, çalışma 25 Ağustos’ta Science dergisinde rapor edildi. Ve bizi insan yapan şeyin bizi…

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[studyingbymylonesome]

The dorsal circuit (cognition) modulates the output of the ventral circuit (emotional behaviors) [17, 18, 19]. It is hypothesized that an increase in the activity of the ventral circuit results in increased anxiety and repetitive behaviors, while a decrease in activity of the dorsal circuit results in reduced ability to regulate emotional-based activities [17, 20, 21, 22]. The inability to inhibit and regulate learned automated behaviors can result in repetitive, compulsive behaviors such as OCD, obsession with various parts of self (BDD) or belongings (HD), hair pulling (TTM), and skin picking (ExD).

[suprimatec]

Suprimir a vingança: Como o cérebro atua no processo

Suprimir a vingança: Como o cérebro atua no processo

Pesquisadores descobrem quais zonas cerebrais são ativadas pela raiva.

O desejo de vingança pode ser a consequência de um sentimento de raiva. Mas este é o caso no nível cerebral? O que acontece no cérebro humano quando sentimos a injustiça?

Para responder a essas perguntas, pesquisadores da Universidade de Genebra (UNIGE), na Suíça, desenvolveram um jogo econômico em que um participante é…

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[studyingbymylonesome]

-Medial prefrontal cortex plays an important role in interpreting and understanding the thoughts and mental states of ourselves and others

. – Amygdala is important for emotional (positive and negative) reactions.

 – Ventromedial prefrontal cortex: a critical hub for caregiving behaviors, morality, and decisionmaking, by combining cognitive and emotional processes necessary to guide social behavior. An area of the brain called the ventromedial prefrontal cortex has been found to be important for certain aspects of human morality. Patients who have damage to this brain region or who have had it removed also tend to experience less empathy, embarrassment, and guilt than people without damage to this region.

 – Dorsolateral prefrontal cortex plays an important role in self-control and intelligence.

 – Insula provides the foundation for being aware of our body feels. 

– Posterior superior temporal sulcus is a key region to understand the intentions of others.

[studyingbymylonesome]

DLPFC

How the cortex assigns credit for causality

Say, for instance, you've forgotten which of your 10 usual passwords logs you into a favorite website. When you finally enter the right one, your brain should have a mechanism for noting which one led to that success.

Positioned on the brain's surface behind the top of the forehead, the dorsolateral prefrontal cortex (dPFC) is in a vulnerable place.

If some dPFC neurons have that function, Asaad and his colleagues reasoned, then they should have to behave in four specific ways during the task.

  The study does not rule out that other brain regions are also involved, Asaad noted. Instead, credit assignment almost certainly does involve other regions. But the new evidence shows that the dPFC is a key player.