When recording from a single neuron stimulus intensity is represented by?
Cognition
| Question |
Answer |
| Paul Broca’s & Carl Wernicke’s research provided early evidence for |
localization of function |
| When recording from a single neuron, stimulus intensity is represented in a single neuron by the |
firing rate of the action potentials |
When conducting an experiment on how stimuli are represented by the firing of neurons you notice that?
When conducting an experiment on how stimuli are represented by the firing of neurons, you notice that neurons respond differently to different faces. For example, Arthur’s face causes three neurons to fire, with neuron 1 responding the most and neuron 3 responding the least.
Which of the following brain imaging techniques discovered in 1980 is now a standard technique for detecting tumors and other brain abnormalities?
MR imaging (MRI), first applied clinically in the 1980s, almost immediately supplanted CT as the imaging method of choice for patients with brain tumors, including metastatic disease, and for following response to treatment (Graif et al., 1985; Patel et al., 2012).
Why is it easier to study brain tissue from newborn animals than brain tissue from adults quizlet?
Why is it easier to study brain tissue from newborn animals than brain tissue from adults? a. The density of cells in a newborn brain is small compared with the density in an adult brain. The density of cells in a newborn brain is higher compared with the density in an adult brain.
What is a key difference between dendrites and axons group of answer choices?
1. Dendrites receive electrochemical impulses from other neurons, and carry them inwards and towards the soma, while axons carry the impulses away from the soma. 2. Dendrites are short and heavily branched in appearance, while axons are much longer.
What does the field of neuropsychology study quizlet?
Neuropsychology, a subspecialty of psychology, is the study of how complex properties of the brain all behavior to occur.
What does the field of neuropsychology study?
Neuropsychology is the subspecialty of psychology that studies brain–behavior relationships. The major role of clinical neuropsychologists is the assessment of cognitive function in individuals with known or suspected brain damage.
In which concept is an individual’s knowledge most important quizlet?
In which concept is an individual’s knowledge most important? the ability to pay attention to one stimulus while filtering out other stimuli.
What contains the words stored in memory each of which has a threshold for being activated?
dictionary unit
What is attenuation in psychology?
1. the lessening or weakening in strength, value, or quality of a stimulus or other factor, for example, a medication acting on symptoms. ATTENUATION: “Attenuation in the person’s depressive symptoms occurred when he or she began to take medication and partake in therapy.”
Who proposed attenuation theory?
Treisman
What is Treisman’s attenuation theory?
Treisman’s Attenuation Model Attenuation is like turning down the volume so that if you have 4 sources of sound in one room (TV, radio, people talking, baby crying) you can turn down or attenuate 3 in order to attend to the fourth. This means that people can still process the meaning of the attended message(s).
What is the filter attenuation theory?
Filter-attenuation theory was developed by Triesman (1962) by modifying Broadbent’s theory. According to this theory the stimuli not getting access to the selective filter at a given moment of time are not completely blocked. The filter only attenuates their strength.
What does the attenuation theory suggest?
a version of the filter theory of attention proposing that unattended messages are attenuated (i.e., processed weakly) but not entirely blocked from further processing.
What is the meaning of attenuation?
: the act or process of attenuating something or the state of being attenuated: such as. a : a lessening in amount, force, magnitude, or value : weakening Sound can travel thousands of kilometers in this planar acoustic waveguide with little attenuation.—
What is the bottleneck theory?
The bottleneck theory suggests that individuals have a limited amount of attentional resources that they can use at one time. Therefore, information and stimuli are ‘filtered’ somehow so that only the most salient and important information is perceived.
Why is attention important for perception?
Top-down attention usually enhances the signals and perception of task-relevant stimuli (Moran & Desimone, 1985) and inhibits the signals and perception of task-irrelevant stimuli (Friedman-Hill, Robertson, Desimone, & Ungerleider, 2003).
What is Attention theory?
In many theories, attention is the link between perception and memory: the amount of attention devoted to an event at the time it occurs (i.e., at encoding) is a good predictor of the likelihood that it will be consciously remembered later (i.e., at retrieval).
What are the various theories of attention?
A “hugely influential” theory regarding selective attention is the perceptual load theory, which states that there are two mechanisms that affect attention: cognitive and perceptual. The perceptual considers the subject’s ability to perceive or ignore stimuli, both task-related and non task-related.
What is attention according to psychology?
Attention, in psychology, the concentration of awareness on some phenomenon to the exclusion of other stimuli.
How does attention affect memory?
Attention and working memory are both key to learning new information. Attention allows information to be taken in. Working memory helps the brain make sense of it. Many kids who struggle to learn have attention issues, working memory issues, or both.
What is attention and what are its three key characteristics?
What is attention, and what are its three key characteristics? Attention: the amount of mental activity a consumer devotes to a stimulus. Three characteristics: attention is limited, attention is selective, attention can be divided.