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Why Is It So Hard to Choose Tomorrow Over Today?

Why Is It So Hard to Choose Tomorrow Over Today?

In the realm of behavioral economics, time preference delves into the human tendency to value immediate gratification over future rewards. This inc...

Why Does Waiting Make a Reward Feel Less Valuable?

Why Does Waiting Make a Reward Feel Less Valuable?

Time preference, also known as time discounting or temporal discounting, is a fundamental concept in behavioral economics. It describes the relativ...

Stony Brook University Researchers Identify Neural Pathway Linked to OCD-like Behaviors

Stony Brook University Researchers Identify Neural Pathway Linked to OCD-like Behaviors

A research team at Stony Brook University has identified a previously little-observed neural pathway that may be crucial to understanding obsessive-compulsive behavior. The study, published in the science journal Neuron, found a direct connection between the amygdala, which processes fear and anxiety, and the dorsolateral striatum, a brain region involved in habit formation. By repeatedly activating this pathway in laboratory mice, researchers were able to induce OCD-like grooming behaviors. Conversely, inhibiting the amygdala's activity in mice engineered to exhibit these behaviors helped moderate them. This discovery offers a new perspective on the neurological underpinnings of OCD, a disorder affecting millions of Americans. The research utilized various 'circuit-tracing' methods to observe brain activity in mice, whose genes and brain anatomy share similarities with humans.

Why Jump Scares Make Some October Viewers Laugh Instead of Scream

Why Jump Scares Make Some October Viewers Laugh Instead of Scream

Ever wondered why you laugh at a jump scare instead of screaming? Discover the surprising psychology behind this common horror movie reaction.

Why We Assume Our Future Selves Will Want What We Want Now

Why We Assume Our Future Selves Will Want What We Want Now

Projection bias is a cognitive phenomenon that influences how individuals predict their future emotional states and preferences. This bias, first f...

Research Indicates Future Video Generation Models Align Better with Human Visual Cortex Than Observed Video Models

Research Indicates Future Video Generation Models Align Better with Human Visual Cortex Than Observed Video Models

New research suggests that the internal representations used by video generation models to predict future video frames align more closely with the human visual cortex than representations of observed video. This study, conducted by Ahn et al. (2024) and building on previous work by Allen et al. (2022) and Lahner et al. (2024, 2025), challenges the traditional focus on how the brain processes observed visual stimuli. The researchers hypothesize that the brain's predictive nature means its responses are better matched by models that generate future visual information. They compared human video-watching fMRI responses in the visual cortex with internal representations from two types of video diffusion models: an autoregressive (AR) model and its non-AR base model. The findings indicate that representations for future video generation show better alignment with the visual cortex. Specifically, the alignment for observed video reconstruction is concentrated in lower-order visual cortex, while future video gener...

Max Planck Researchers Uncover Local Protein Synthesis in Cortical Layer 1, Advancing Understanding of Sensory Processing and Learning

Max Planck Researchers Uncover Local Protein Synthesis in Cortical Layer 1, Advancing Understanding of Sensory Processing and Learning

Researchers at the Max Planck Institute for Brain Research have made a significant discovery regarding the cerebral cortex, specifically its outermost layer, layer 1. Their study, published in Cell Reports, reveals that synapses in cortical layer 1 can produce proteins locally, a process previously not well understood in this region. Layer 1 is crucial for processing sensory information and supporting functions like memory and cognition, and it contains distant dendrites of neurons located deeper in the cortex. These dendrites receive numerous synaptic inputs, including 'top-down' information related to environmental context and internal states. The research team, led by Professor Erin Schuman and graduate student Teresa Spanò, used a combination of laser-capture microdissection, RNA sequencing, fluorescence in situ hybridization, and biochemical approaches to demonstrate that layer 1 contains localized messenger RNAs (mRNAs) and actively synthesizes new proteins. They identified over 1,000 different local...

University of Geneva Researchers Uncover How Biological Clock Regulates Wakefulness in Fruit Flies

University of Geneva Researchers Uncover How Biological Clock Regulates Wakefulness in Fruit Flies

Researchers at the University of Geneva (UNIGE), led by Emi Nagoshi's laboratory, have made significant strides in understanding how the biological clock regulates phases of wakefulness. Using fruit flies as a model, the team identified specific neural circuits that transmit information from the circadian clock to brain regions involved in sleep and wakefulness. The study, published in 'Current Biology,' details how clock neurons inhibit dopaminergic neurons, which in turn stimulate neurons in the mushroom body—a brain region crucial for learning, memory, and sleep regulation. This inhibition by clock neurons reduces the wake-promoting signal, while its release allows dopaminergic neurons to more strongly stimulate the mushroom body, thereby promoting wakefulness. This mechanism reveals how the biological clock communicates time-of-day information to influence brain circuits, highlighting the central role of dopamine in this process.

Lund University Study Reveals Distinct Brain Communication Patterns in Alzheimer's Disease and Aging

Lund University Study Reveals Distinct Brain Communication Patterns in Alzheimer's Disease and Aging

A new study from Lund University, published in Nature Neuroscience, indicates that normal aging and Alzheimer's disease reshape brain communication in distinct ways. Researchers, including doctoral student Jonathan Rittmo and associate senior lecturer Jacob Vogel, analyzed brain imaging data from over 1,000 individuals. They found that while both processes alter functional connectivity between brain regions, the patterns of these alterations are different. Notably, the distinctive changes in brain communication associated with Alzheimer's disease were apparent even in individuals with low levels of Alzheimer's pathology who had not yet developed cognitive symptoms. The study suggests that connectivity alterations are not isolated to single region-to-region changes but emerge across several brain parts simultaneously, following different axes for aging and disease.

Why Group Reactions Can Amplify Fear During an October Theatrical Horror Screening

Why Group Reactions Can Amplify Fear During an October Theatrical Horror Screening

Discover the psychology behind why horror movies feel so much scarier in a packed theater, from emotional contagion to the power of social proof.

Why Some People Love Feeling Scared During October Horror Movies

Why Some People Love Feeling Scared During October Horror Movies

Ever wonder why you enjoy being terrified by horror movies? The answer involves a fascinating mix of brain chemistry, psychological safety, and social connection.

Why Your Brain Can Make You Feel More Skilled Than You Are

Why Your Brain Can Make You Feel More Skilled Than You Are

The Dunning-Kruger effect, a well-known cognitive bias where individuals with low ability overestimate their competence, does not exist in isolatio...