Plasticity refers to a physiologically measured change that may last for short or long periods of time. Endocannabinoids (ECBs) are prevalent throughout most of the brain, and modulate synaptic transmission in many ways. This chapter will focus on the roles of ECBs in neural plasticity in the ...
Neuroplasticity has the power to produce more flexible but also more rigid behaviors—a phenomenon I call “the plastic paradox.” Ironically, some of our most stubborn habits and disorders are products of our plasticity. Once a particular plastic change occurs in the brain and becomes well establ...
3.1. Short-term plasticity Short-term plasticity (STP) refers to the changes in the synaptic strength which occur on a sub-second timescale and modulate the synaptic strength in an activity-dependent manner [13, 14]. This may be further categorized as mentioned below. 3.1.1. Post-tetanic po...
This complex interplay of morphological alterations and synaptic types over time and location may form a critical aspect of neural plasticity. Introduction Synaptic plasticity refers to the process by which synapses are altered in structure and function in response to a number of stimuli and/or ...
Effects of burst-timing-dependent plasticity on synchronous behaviour in neuronal network Brain plasticity or neuroplasticity refers to the ability of the nervous system to reorganise itself in response to stimuli. For instance, sensory and moto... JA Paludo Silveira,PR Protachevicz,RL Viana,......
For example, LA neurons exhibit robust increases in activity (ie, neural plasticity) in response to the CS throughout conditioning (Maren and Quirk, 2004), and pre-training inactivation of the amygdala using muscimol leads to a disruption in long- term fear memory (Muller et al, 1997). ...
Keywords: plasticity; psychedelics; complexity 1. Introduction In this paper, we explore new perspectives to interpret changes in the brain’s landscape and connectivity, focusing on the subtle interplay between structural and dynamical aspects across timescales (fast, slow, and ultraslow). Our primary...
Loss of plasticity in deep continual learning ArticleOpen access21 August 2024 Main The credit assignment problem1lies at the very heart of learning. Backpropagation2, as a simple yet effective credit assignment theory, has powered notable advances in artificial intelligence since its inception3,4,5...
Successful cognitive aging entails either improving or maintaining cognitive reserve to support overall cognition. Vance and Crowe (2006) proposed a model of neural plasticity and cognitive reserve in older adults that posited several steps to maintain or limit age-related loss, including a healthy li...
Experience-expectant plasticity occurs in response to experiencesresultingfrom ubiquitous environmental factors such asvisual stimulationand the sound of people talking to each other. • Experience-dependent plasticity refers to the way experiences shape brain development through the process of synaptogenesis...