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john watson - BDoughertyAmSchool
john watson - BDoughertyAmSchool

... “Give me a dozen healthy infants, well-formed, and my own specified world to bring them up in and I'll guarantee to take any one at random and train him to become any type of specialist I might select – doctor, lawyer, artist, merchant-chief and, yes, even beggar-man and thief, regardless of his tal ...
Learning Psychology
Learning Psychology

...  Write a paragraph summarizing the section on “Modeling” and another paragraph summarizing the section on “Behavior Modification.” Both paragraphs should be written in your own words and include all of the main points of the section.  Test on Chapter 9 (Unit 6) on Friday April 5 ...
Learning Psychology
Learning Psychology

... the desired behavior and requiring evercloser approximations of the desired behavior Chaining: Learned reactions that follow one another in sequence. Each reaction leads to the next. (Learning to swim) ...
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File

... many stimuli in many organisms. 2. Classical conditioning showed how something as abstract as “learning” can be studied objectively (with opinions stripped away). 2. Applications came out of Pavlov’s work as well such as the health and well-being of people. 1. For example, a drug addict may re-enter ...
instrumental conditioning
instrumental conditioning

... Two of Thorndike’s puzzle boxes, A and I. In Box A, the participant had to pull a loop to release the door. In Box I, pressing down on a lever released a latch on the other side. (Left: Based on “Thorndike’s Puzzle Boxes and the Origins of the Experimental Analysis of Behavior,” by P. Chance, 1999, ...
compound action potential: nerve conduction
compound action potential: nerve conduction

... polarity of the impulse is negative (-) because we are measuring from the outside (opposite polarity to that inside the cell). Since both recording electrodes at this instant are at the same voltage potential, it records 0 Volts. Note: It only matters that the stimulus level exceeds the nerve fiber' ...
Spinal Reflexes
Spinal Reflexes

... • Has been the dominant view for 100 years. • New data shows that you can complete coordinated movement without sensory information. • Is still important ...
Examination of sensory physiology Obgective:To determine the
Examination of sensory physiology Obgective:To determine the

... 2.Pain:it can tested by using pinprick. The eyes of subjects should be opened because closed eyes leads to anxious or hart them . the examination must be no more then 15 second and avoid repeating the test more then once because this causes fatigue . if the skin of palm is thick ,test the sides. 3.T ...
PNS
PNS

... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings ...
LEARNING AND TEACHING : THEORIES, APPROACHES AND
LEARNING AND TEACHING : THEORIES, APPROACHES AND

... According to behaviorists, people are not good or bad from birth. Experiences and environment constitute a human’s personality. According to them, human brain can be compared to a black box. Neither can we know what is going on in this black box nor do we need to know it. What is important is not wh ...
behaviorist approach - International Journal on New Trends in
behaviorist approach - International Journal on New Trends in

... According to behaviorists, people are not good or bad from birth. Experiences and environment constitute a human’s personality. According to them, human brain can be compared to a black box. Neither can we know what is going on in this black box nor do we need to know it. What is important is not wh ...
VL_CHAPTER_4
VL_CHAPTER_4

... The contrast threshold is the minimum intensity difference between two adjacent areas that can just be detected. Contrast sensitivity is the reciprocal of contrast threshold, so low threshold represents high sensitivity. Contrast threshold can be measured by determining the lowest contrast between b ...
different sensory modalities
different sensory modalities

... • there are many areas in the brain in which multiple sensory afferents converge • there are colliculus neurons that respond vigorously to low intensity auditory stimulus, but if the animal can’t see the visual stimulus the response is suppressed • the colliculus is an apt structure to study interac ...
Neurons, Neural Networks, and Learning
Neurons, Neural Networks, and Learning

... membership is recognized correctly. If so, no action is required. If not, a learning rule must be applied to adjust the weights. • This iterative process has to continue either until for all vectors from the learning set their membership will be recognized correctly or it will not be recognized just ...
Operant Conditioning: Reinforcements and Punishments
Operant Conditioning: Reinforcements and Punishments

... • Jack finally takes the garbage out in order to get his father to stop pestering him. Jack’s behavior is being influenced by A.positive reinforcement B.negative reinforcement C.primary reinforce D.punishment ...
Neuronal basis of contrast discrimination
Neuronal basis of contrast discrimination

... with a mid-gray field of equal mean luminance. Voxels with correlations above a liberal threshold (r \0.23 with 0–9 s time lag) were included in further analyses. This correlation threshold of r\0.23 corresponds to a PB 0.025 (one-tailed) significance level with n =72 given that the 72 points in the ...
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...  Discrimination ...
Psychological Perspectives
Psychological Perspectives

... “Opinion has caused more trouble on this little earth than plagues or earthquakes” (Voltaire – French philosopher) ...
NEURAL NETWORKS
NEURAL NETWORKS

... In this way such a system can be used to classify patterns appearing on the retina into categories, according to the number of response units in the system. Patterns that are sufficiently similar should excite the same response unit, different patterns should excite different response units. How we ...
Predictability Modulates Human Brain Response to Reward
Predictability Modulates Human Brain Response to Reward

... temporal-differences (TD), which postulates that a synaptically reinforcing substance, e.g. dopamine, is released in response to errors in reward prediction (Schultz et al., 1997). This model has been used in a wide variety of applications including complex learning tasks, like backgammon (Sutton, 1 ...
Representational Capacity of Face Coding in Monkeys
Representational Capacity of Face Coding in Monkeys

... particular set of firing rates (Bialek et al., 1991; Salinas and Abbott, 1994). It can be used to determine the accuracy with which stimuli are represented by neuronal firing. We define the discrimination accuracy as the percentage of times that a decoding algorithm is able to extract the correct st ...
Open Document
Open Document

... disappearance of a response when it is no longer followed by reinforcement  In Skinner box, rats would stop pressing lever if food was never ...
Predictability Modulates Human Brain Response to Reward
Predictability Modulates Human Brain Response to Reward

... fMRI experiment, we used an existing neural network model of dopamine release to simulate the brain response to different temporal patterns of rewarding stimuli (Fig. 2). This model was based on the method of temporal differences (TD), which postulates that a synaptically reinforcing substance, e.g. ...
Chapter 6 – Perception
Chapter 6 – Perception

... v. Shaping, a procedure in which reinforcers, such as food, gradually guide an animal’s actions toward a desired behavior a. After observing how the animal naturally behaves before training, you would build on its existing behaviors b. To condition hungry rat to press a bar you build on existing beh ...
Questions - Ms. Paras
Questions - Ms. Paras

... FUNDAMENTAL ATTRIBUTION ERROR ...
< 1 ... 48 49 50 51 52 53 54 55 56 ... 142 >

Psychophysics

Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they affect. Psychophysics has been described as ""the scientific study of the relation between stimulus and sensation"" or, more completely, as ""the analysis of perceptual processes by studying the effect on a subject's experience or behaviour of systematically varying the properties of a stimulus along one or more physical dimensions"".Psychophysics also refers to a general class of methods that can be applied to study a perceptual system. Modern applications rely heavily on threshold measurement, ideal observer analysis, and signal detection theory.Psychophysics has widespread and important practical applications. For example, in the study of digital signal processing, psychophysics has informed the development of models and methods of lossy compression. These models explain why humans perceive very little loss of signal quality when audio and video signals are formatted using lossy compression.
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