Home » Archives by category » Psychology news (Page 831)

LSD alters perception via serotonin receptors

Researchers have discovered how the perception of meaning changes in the brain under the influence of LSD. The serotonin 2A receptors are responsible for altered perception. This finding will help develop new courses of pharmacotherapy for psychiatric …

Study in teens shows that brain responses to rewards are linked to pain sensitivity

Patterns of brain responses to rewards are a significant predictor of pain symptoms — a link that is already present by adolescence — and may be influenced by gene variants affecting pain sensitivity, reports a new study.

New drug SAK3 may offer hope to Alzheimer’s disease patients

Acetylcholine is a neurotransmitter in the brain that plays an important role in controlling attention and cognition. Acetylcholine system dysfunction is believed to be one of the causes of Alzheimer’s disease (AD) and vascular dementia.

Brain shape linked to personality differences

The shape of your brain can influence personality traits, according to a new study.

Echolocation: Sizing up spaces by ear

Humans can be trained to use echolocation to estimate the sizes of enclosed spaces. Researchers now show that the learning process involves close coordination between sensory and motor cortex.

New insights into brain circuit for hunger responses during starvation

Researchers uncover mechanism by which hypothalamic neural signaling drives hunger responses to survive starvation.

Postpartum depression & anxiety distinct from other mood disorders, brain studies suggest

On the surface, postpartum depression (PPD) looks much like other forms of depression.

New study shows old drugs far better at treating bipolar

A new Deakin University and Barwon Health study has found an old treatment for bipolar is much more effective than a newer medication.

Delaying marijuana smoking to age 17 cuts risks to teens’ brains, new study suggests

Adolescents who smoke marijuana as early as 14 do worse by 20 points on some cognitive tests and drop out of school at a higher rate than non-smokers. But if they hold off until age 17, they’re less at risk.

Hypoxia due to CHD linked to abnormal neurogenesis and impaired cortical growth

The subventricular zone in normal newborns’ brains is home to the largest stockpile of neural stem/progenitor cells, with newly generated neurons migrating from this zone to specific regions of the frontal cortex and differentiating into interneurons. …