An Extended Model for Stimulus Onset Asynchrony (SOA) in Stroop
... 200, 100 or 0 ms before the time of color block presentation (distractor-first); or 0, 100, 200, 300, or 400 ms after the color block onset time (target-first). The results by Glaser and Glaser [11] indicated that the Stroop phenomenon was not caused by the relative speed of processing of word or co ...
... 200, 100 or 0 ms before the time of color block presentation (distractor-first); or 0, 100, 200, 300, or 400 ms after the color block onset time (target-first). The results by Glaser and Glaser [11] indicated that the Stroop phenomenon was not caused by the relative speed of processing of word or co ...
Perception
... -Measure a receptive field of a neuron by stimulating a cat’s retina with light and recording from a nerve fiver -cat is stationary and is looking at a screen -flash a small spot of light Excitatory area: areas where there’s an increase in neurons’ firing rate Inhibitory area: areas where there’s a ...
... -Measure a receptive field of a neuron by stimulating a cat’s retina with light and recording from a nerve fiver -cat is stationary and is looking at a screen -flash a small spot of light Excitatory area: areas where there’s an increase in neurons’ firing rate Inhibitory area: areas where there’s a ...
Properties of reflex action
... It is a gradual ↑ in the magnitude of the reflex response at the onset of afferent stimulation until the response reaches its full magnitude. Cause: • Motor neurons are said to be gradually recruited (activated), one after the other i.e. not excited at the same time. Due to; A. Different velocities ...
... It is a gradual ↑ in the magnitude of the reflex response at the onset of afferent stimulation until the response reaches its full magnitude. Cause: • Motor neurons are said to be gradually recruited (activated), one after the other i.e. not excited at the same time. Due to; A. Different velocities ...
The Nervous System Worksheet
... They are fast, automatic, protective, biological control ……………… systems that link a stimulus to a response. b) Reflexes help animals survive. Name one reflex action that helps in survival. ...
... They are fast, automatic, protective, biological control ……………… systems that link a stimulus to a response. b) Reflexes help animals survive. Name one reflex action that helps in survival. ...
Science in Motion
... target on the opposite side of the original displacement. Numerous regions of the brain are involved in this visuomotor activity that incorporate the necessary sensory information and control the motor output. As the student throws the beanbags and identifies the target, reflected light from the tar ...
... target on the opposite side of the original displacement. Numerous regions of the brain are involved in this visuomotor activity that incorporate the necessary sensory information and control the motor output. As the student throws the beanbags and identifies the target, reflected light from the tar ...
Information Theory and Neural Coding
... A1 neurons in adult ferrets carry more information about the spatial location of a sound stimulus than do responses of infant neurons. Li et al (Nature Neurosci 2004) found that the mutual information between visual stimuli and V1 responses can depend on the task an animal is performing (attention?) ...
... A1 neurons in adult ferrets carry more information about the spatial location of a sound stimulus than do responses of infant neurons. Li et al (Nature Neurosci 2004) found that the mutual information between visual stimuli and V1 responses can depend on the task an animal is performing (attention?) ...
Compound Action Potential, CAP
... 1. Focal demyelination (FD): There is focal slowing of conduction across the area of demyelination. If the segment is long it is easy to detect; however, if the segment is short, one needs special techniques such as “inching” study. 2. Axon loss: The portion below the area of axon loss shows no cond ...
... 1. Focal demyelination (FD): There is focal slowing of conduction across the area of demyelination. If the segment is long it is easy to detect; however, if the segment is short, one needs special techniques such as “inching” study. 2. Axon loss: The portion below the area of axon loss shows no cond ...
Psycholinguistics
... How are certain morphemes related? Do we store mono-morphemic words differently than polymorphemic words? (is there a “morpheme” place in the brain)? Are irregular morphemes stored differently than regular morphemes? ...
... How are certain morphemes related? Do we store mono-morphemic words differently than polymorphemic words? (is there a “morpheme” place in the brain)? Are irregular morphemes stored differently than regular morphemes? ...
A Model of Recurrent Interactions in Primary Visual Cortex
... Figure 3: Classical RF e ects. A) Contrast response function for excitatory (solid) and inhibitory (dashed) cells. B) Orientation tuning for di erent contrast levels (solid); scaled LGN input (dashed). cellular observations [4]. Furthermore, that model cannot explain supersaturation. Our model achie ...
... Figure 3: Classical RF e ects. A) Contrast response function for excitatory (solid) and inhibitory (dashed) cells. B) Orientation tuning for di erent contrast levels (solid); scaled LGN input (dashed). cellular observations [4]. Furthermore, that model cannot explain supersaturation. Our model achie ...
Upper and Lower Motor Neuron Lesions
... 4) Exaggerated tendon jerk & clonus: due to increased supraspinal facilitation. 5) Positive Babinski's sign ...
... 4) Exaggerated tendon jerk & clonus: due to increased supraspinal facilitation. 5) Positive Babinski's sign ...
SOP007_HoffmanReflex
... the stimulus will be turned down until the threshold for eliciting the reflex has been determined, then it will be increased until an M-wave is apparent and the H-wave is abolished. A standard H-M curve will be generated. A maximum voltage of 150V or up to a level that the subject is comfortable wit ...
... the stimulus will be turned down until the threshold for eliciting the reflex has been determined, then it will be increased until an M-wave is apparent and the H-wave is abolished. A standard H-M curve will be generated. A maximum voltage of 150V or up to a level that the subject is comfortable wit ...
PPT2
... The complex cells, which are not sensitive to the polarity of the luminance contrast at edge, would be particularly suitable for representing borders or boundaries of regions. The Hypercomplex cells could serve as derivative operators which act on complex cells’ responses to detect texture boundarie ...
... The complex cells, which are not sensitive to the polarity of the luminance contrast at edge, would be particularly suitable for representing borders or boundaries of regions. The Hypercomplex cells could serve as derivative operators which act on complex cells’ responses to detect texture boundarie ...
Nature Reviews Neuroscience Highlight
... a classic feature of perceptual categorization and allows for the dissociation of physical similarity and category membership. Two monkeys were trained to categorize the stimuli set as either cat or dog. Freedman et al. then looked for neurons that reflected the different categories. A population of ...
... a classic feature of perceptual categorization and allows for the dissociation of physical similarity and category membership. Two monkeys were trained to categorize the stimuli set as either cat or dog. Freedman et al. then looked for neurons that reflected the different categories. A population of ...
Top-down influence in early visual processing: a Bayesian perspective
... used to measure the neuronal response to direct stimulation of the RF alone, without any surround stimulus. The hole stimulus was the same as the uniform condition except the stimulus element on the RF was absent. It was used to measure the response to direct stimulation of only the extra-RF surroun ...
... used to measure the neuronal response to direct stimulation of the RF alone, without any surround stimulus. The hole stimulus was the same as the uniform condition except the stimulus element on the RF was absent. It was used to measure the response to direct stimulation of only the extra-RF surroun ...
REU Poster - CURENT Education
... •Is an interconnected group of nodes, similar to the •With the use of neurons is a simpler neuron in the brain. •Presented as system of interconnected neurons that way to solve problems. •They read an input, process it, and compute values from inputs. generate an output. Represents an artificial neu ...
... •Is an interconnected group of nodes, similar to the •With the use of neurons is a simpler neuron in the brain. •Presented as system of interconnected neurons that way to solve problems. •They read an input, process it, and compute values from inputs. generate an output. Represents an artificial neu ...
Introduction of the Nervous System
... that are always identical and do not allow conscious actions. We must not confuse these with "reactions", which are different from reflexes in that they are voluntary responses to a stimulus from the environment. ...
... that are always identical and do not allow conscious actions. We must not confuse these with "reactions", which are different from reflexes in that they are voluntary responses to a stimulus from the environment. ...
Lecture notes
... There must be higher-order auditory neurons in humans that are selective for the temporal modulations critical to speech, but also tolerant to pitch. ...
... There must be higher-order auditory neurons in humans that are selective for the temporal modulations critical to speech, but also tolerant to pitch. ...
Temporal dynamics of a neural solution to the aperature
... MT response should be tuned for actual direction of motion and not for orientation of the contour (not in actual direction of the motion) ...
... MT response should be tuned for actual direction of motion and not for orientation of the contour (not in actual direction of the motion) ...
Inhibition of Regenerative Responses in the Salamander
... regenerating limbs, indicating the re-expression of developmental genes during regeneration. It has been speculated that the adult human’s inability to regenerate is due to inhibition of developmental genes, which are present but inactive. Studies on chick embryos have found that the ECM is an influ ...
... regenerating limbs, indicating the re-expression of developmental genes during regeneration. It has been speculated that the adult human’s inability to regenerate is due to inhibition of developmental genes, which are present but inactive. Studies on chick embryos have found that the ECM is an influ ...
Object recognition in clutter: selectivity and invariance
... Motivation: Understanding how single and multiple objects are represented in the higher cortical areas of primates is one of the major objectives of computational and systems neuroscience. Such a challenge requires a highly multidisciplinary approach that combines electrophysiology and psychophysics ...
... Motivation: Understanding how single and multiple objects are represented in the higher cortical areas of primates is one of the major objectives of computational and systems neuroscience. Such a challenge requires a highly multidisciplinary approach that combines electrophysiology and psychophysics ...
FIGURE LEGENDS FIGURE 51.1 Normal and pathological brain
... FIGURE 51.3 The Neuronal Correlates of Consciousness (NCC) are the minimal set of neural events and structures—here synchronized action potentials in neocortical pyramidal neurons—sufficient for a specific conscious percept or memory. From Koch (2004). FIGURE 51.4 A fraction of aminute in the life o ...
... FIGURE 51.3 The Neuronal Correlates of Consciousness (NCC) are the minimal set of neural events and structures—here synchronized action potentials in neocortical pyramidal neurons—sufficient for a specific conscious percept or memory. From Koch (2004). FIGURE 51.4 A fraction of aminute in the life o ...
F3 - Attack Responses in Young Domestic Chicks
... Individual chicks (7-21 days of age) are placed so that they can see a human finger or hand thrusted towards them. In response to the operator’s hand movement the chick may respond by: An avert gaze - the chick does not attend to the stimulus, and receives a zero score; A binocular stare - the c ...
... Individual chicks (7-21 days of age) are placed so that they can see a human finger or hand thrusted towards them. In response to the operator’s hand movement the chick may respond by: An avert gaze - the chick does not attend to the stimulus, and receives a zero score; A binocular stare - the c ...
Chapter 13
... Electrical stimulation of circuits within the hippocampal formation (forebrain structure of the temporal lobe, part of the limbic system) can lead to long-term synaptic changes that seem to be among those responsible for learning LTP – a long-term increase in the excitability of a neuron to a part ...
... Electrical stimulation of circuits within the hippocampal formation (forebrain structure of the temporal lobe, part of the limbic system) can lead to long-term synaptic changes that seem to be among those responsible for learning LTP – a long-term increase in the excitability of a neuron to a part ...
Activity 3 - Classical Conditioning
... Revision of research methods: o single participant design o controls – the use of baseline measure Debates in psychology: o use of animals in experimental research ...
... Revision of research methods: o single participant design o controls – the use of baseline measure Debates in psychology: o use of animals in experimental research ...
Response priming
In the psychology of perception and motor control, the term response priming denotes a special form of priming. Generally, priming effects take place whenever a response to a target stimulus is influenced by a prime stimulus presented at an earlier time. The distinctive feature of response priming is that prime and target are presented in quick succession (typically, less than 100 milliseconds apart) and are coupled to identical or alternative motor responses. When a speeded motor response is performed to classify the target stimulus, a prime immediately preceding the target can thus induce response conflicts when assigned to a different response as the target. These response conflicts have observable effects on motor behavior, leading to priming effects, e.g., in response times and error rates. A special property of response priming is its independence from visual awareness of the prime.