Beyond human consciousness

“What is it like to be a bat?” famously asked Thomas Nagel in 1974 in The Philosophical Review. It may sound like a silly question, but it has profound implications. We quite literally make sense of the world through our touch, sight, hearing, smell, and taste. Our sense of space in particular is governed in … Read More

Science-based methods to improve your memory

Many think it’s impossible to improve your memory. But scientific research shows that many techniques do have an impact on how well we remember things. Unfortunately, lots of people use the wrong methods. For example, highlighting has virtually zero effect on information retention. “It seems like if I have highlighted something (…) then I should … Read More

Are emotions good or bad?

The role of emotions has been debated over the years, with some claiming that they are “bad for our peace of mind” (Skinner, 1948), and others arguing that they are important for our “physical or social survival” (Keltner & Gross, 1999). Emotions can be defined as states induced by the occurrence, termination, or omission of … Read More

A quick overview of the polymerase chain reaction

The polymerase chain reaction (PCR) is a laboratory method that allows researchers to produce a significant amount of specific DNA using trace amounts of source DNA, which can be obtained from a variety of organisms and tissues (Garibyan & Avashia, 2013). When discovered in the 1980s, the technique – which can produce billions of copies … Read More

Measuring brain function: how do fMRI scanners work?

In 1977, Dr. Raymond Damadian performed the first magnetic resonance imaging (MRI) scan on a live human patient (Edelman, 2014). MRI is a non-invasive medical imaging technique producing detailed pictures of anatomical structures and physiological processes inside the body (McRobbie et al., 2017). MRI scans are considered safer than CT scans and PET scans as … Read More

Schizophrenia and dendritic spines

Pyramidal neurons are the primary type of cells in the cerebral cortex; they are made of a cell body called soma, a single axon, an apical dendrite, multiple basal dendrites, and dendritic spines (Megias et al., 2001). Dendritic spines are small neuronal protrusions rising from a neuron’s dendrites; they typically receive excitatory input from one … Read More

The role of the frontal association cortex

The cerebral cortex can be divided into three main parts: the sensory areas, the motor areas, and the association areas. The association cortex is a complex distributed network, receiving information from the primary and secondary sensory and motor areas, as well as the brainstem and the thalamus, processing it, and sending it across multiple pathways … Read More

Schizophrenia and dopamine

Schizophrenia is a mental disorder causing a range of psychological symptoms such as delusions, hallucinations, disordered thinking, and abnormal motor behaviour, and which is considered by many as a neurodevelopmental disorder (Murray & Lewis, 1987; Weinberger, 2003). It affects 0.5–1% of the worldwide population, with a common onset in late adolescence to early adulthood (Perälä … Read More