A neuron is a nerve cell that processes and transmits information through electrical and chemical signals in the nervous system. Neurons consist of a cell body, dendrites (which receive signals), and an axon (which sends signals). Synaptic connections allow communication between neurons, facilitating the relay of information throughout the body.
Neuroimaging, or brain scanning, refers to techniques that produce images of the brain’s structure or activity. These tools allow researchers and clinicians to observe the brain in action and identify abnormalities without surgery.
Neurogenesis is the process by which new neurons are formed in the brain through pre-natal development and as adults. This phenomenon primarily occurs in the hippocampus playing a crucial role in learning, memory, and cognitive flexibility. Factors like exercise, enriched environments, and certain drugs can promote neurogenesis, while stress and aging may inhibit it.
Negative reinforcement refers to the process of removing an unpleasant stimulus after the desired behavior is displayed in order to increase the likelihood of that behavior being repeated.
The nature vs. nurture debate in psychology concerns the relative importance of an individual’s innate qualities (nature) versus personal experiences (nurture) in determining or causing individual differences in physical and behavioral traits. While early theories favored one factor over the other, contemporary views recognize a complex interplay between genes and environment in shaping behavior and development.
Narrative therapy, is a psychotherapeutic approach that empowers clients to explore and reshape their life stories through open dialogues with their therapists, delving into their narratives and actively challenging the ones that contribute to their struggles.
Narcissistic Personality Disorder (NPD) is a mental health condition characterized by a pervasive pattern of grandiosity, a constant need for admiration, and a lack of empathy for others. It falls under the category of Cluster B personality disorders in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), which also includes antisocial, borderline, and histrionic personality disorders.
The myelin sheath is a lipid-rich, insulating layer that surrounds the axons of many nerve cells. Produced by oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system, it serves to increase the speed of nerve impulses. The sheath is segmented, with gaps called nodes of Ranvier, which play a crucial role in the rapid transmission of electrical signals along the axon.
Musical intelligence, also called musical-rhythmic intelligence, is the capacity to discern pitch, rhythm, timbre, and tone. It involves sensitivity to sounds and vibrations. People with high musical intelligence understand and express themselves through music. They can produce and appreciate music, identify distinct musical notes, and may think in rhythms or melodies.
The multi-store model of memory (MSM), proposed by Atkinson and Shiffrin, describes memory as comprising three distinct stores: sensory memory, short-term memory (STM), and long-term … Read more