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Showing posts with label Psychology. Show all posts
Showing posts with label Psychology. Show all posts

Thursday, 23 June 2016

Types of Behaviors By B.F Skinner

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Types of Behaviors

Types of Behaviors By B.F Skinner


Skinner distinguished between two different types of behaviors: respondent behaviors and operant behaviors. Respondent behaviors are those that occur automatically and reflexively, such as pulling your hand back from a hot stove or jerking your leg when the doctor taps on your knee.

 You don't have to learn these behaviors, they simply occur automatically and involuntarily.
Operant behavior, on the other hand, are those under our conscious control. Some may occur spontaneously and others purposely, but it is the consequences of these actions that then influence whether or not they occur again in the future. Our actions on the environment and the consequences of that action make up an important part of the learning process.
While classical conditioning could account for respondent behaviors, Skinner realized that it could not account for a great deal of learning. Instead, Skinner suggested that operant conditioning held far greater importance.
Skinner invented different devices during his boyhood and he put these skills to work during his studies on operant conditioning. He created a device known as an operant conditioning chamber, most often referred to today as a Skinner box. The chamber was essentially a box that could hold a small animal such as a rat or pigeon. The box also contained a bar or key that the animal could press in order to receive a reward.
In order to track responses, Skinner also developed a device known as a cumulative recorder. The device recorded responses as an upward movement of a line so that response rates could be read by looking at the slope of the line.

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Operant Conditioning By B.F Skinner

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Operant Conditioning By B.F Skinner


Skinner is regarded as the father of Operant Conditioning, but his work was based on Thorndike’s law of effect. Skinner introduced a new term into the Law of Effect - Reinforcement. Behavior which is reinforced tends to be repeated (i.e. strengthened); behavior which is not reinforced tends to die out-or be extinguished (i.e. weakened).
Skinner (1948) studied operant conditioning by conducting experiments using animals which he placed in a 'Skinner Box' which was similar to Thorndike’s puzzle box.
Thorndike’s puzzle box


B.F. Skinner (1938) coined the term operant conditioning; it means roughly changing of behavior by the use of reinforcement which is given after the desired response. Skinner identified three types of responses or operant that can follow behavior.
• Neutral operants: responses from the environment that neither increase nor decrease the probability of a behavior being repeated.
• Reinforcers: Responses from the environment that increase the probability of a behavior being repeated. Reinforcers can be either positive or negative.
• Punishers: Responses from the environment that decrease the likelihood of a behavior being repeated. Punishment weakens behavior.



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Thursday, 26 May 2016

Sigmund Freud Theories Freud theory of personality

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Psychoanalytic theory of personality

Freud theory of personality

Sigmund Freud. Freud developed the psychoanalytic theory of personality development, which argued that personality is formed through conflicts among three fundamental structures of the human mind: the id, ego, and superego

Psychoanalytic theory of personality

Structures of the human mind

The id (or it)

The id is the primitive and instinctive component of personality. It consists of all the inherited (i.e. biological) components of personality present at birth, including the sex (life) instinct – Eros (which contains the libido), and the aggressive (death) instinct 
The id is the impulsive (and unconscious) part of our psyche which responds directly and immediately to the instincts.
The personality of the newborn child is all id and only later does it develop an ego and super-ego.
The id remains infantile in it's function throughout a persons life, and does not change with time or experience, as it is not in touch with the external world. The id is not affected by reality, logic or the everyday world, as it operates within the unconscious part of the mind.
freud tripartite personality theory
The id demands immediate satisfaction and when this happens we experience pleasure, when it is denied we experience ‘unpleasure’ or tension.
On the contrary, it operates on the pleasure principle (Freud, 1920) which is the idea that every wishful impulse should be satisfied immediately, regardless of the consequences.
The id engages in primary process thinking, which is primitive, illogical, irrational, and fantasy oriented. This form of process thinking has no comprehension of objective reality, and is selfish and wishful in nature.

The Ego (or I)

The ego is 'that part of the id which has been modified by the direct influence of the external world.'


The ego develops in order to mediate between the unrealistic id and the external real world. It is the decision making component of personality. Ideally the ego works by reason, whereas the id is chaotic and totally unreasonable.
The ego operates according to the reality principle, working out realistic ways of satisfying the id’s demands, often compromising or postponing satisfaction to avoid negative consequences of society. The ego considers social realities and norms, etiquette and rules in deciding how to behave.
Like the id, the ego seeks pleasure (i.e. tension reduction) and avoids pain, but unlike the id the ego is concerned with devising a realistic strategy to obtain pleasure. The ego has no concept of right or wrong; something is good simply if it achieves its end of satisfying without causing harm to itself or to the id.
Often the ego is weak relative to the headstrong id and the best the ego can do is stay on, pointing the id in the right direction and claiming some credit at the end as if the action were its own.
Freud made the analogy of the id being a horse while the ego is the rider. The ego is 'like a man on horseback, who has to hold in check the superior strength of the horse.'
(Freud, 1923, p.15)
If the ego fails in its attempt to use the reality principle, and anxiety is experienced, unconscious defence mechanisms are employed, to help ward off unpleasant feelings (i.e. anxiety) or make good things feel better for the individual.
The ego engages in secondary process thinking, which is rational, realistic, and orientated towards problem solving. If a plan of action does not work, then it is thought through again until a solution is found. This is know as reality testing, and enables the person to control their impulses and demonstrate self-control, via mastery of the ego.
An important feature of clinical and social work is to enhance ego functioning and help the client test reality through assisting the client to think through their options.

The Superego (or above I)

The superego incorporates the values and morals of society which are learned from one's parents and others. It develops around the age of 3 – 5 during the phallic stage of psychosexual development.
The superego's function is to control the id's impulses, especially those which society forbids, such as sex and aggression. It also has the function of persuading the ego to turn to moralistic goals rather than simply realistic ones and to strive for perfection.
The superego consists of two systems: The conscience and the ideal self. The conscience can punish the ego through causing feelings of guilt. For example, if the ego gives in to the id's demands, the superego may make the person feel bad through guilt.
The ideal self (or ego-ideal) is an imaginary picture of how you ought to be, and represents career aspirations, how to treat other people, and how to behave as a member of society.
Behavior which falls short of the ideal self may be punished by the superego through guilt. The super-ego can also reward us through the ideal self when we behave ‘properly’ by making us feel proud.
If a person’s ideal self is too high a standard, then whatever the person does will represent failure. The ideal self and conscience are largely determined in childhood from parental values and how you were brought up.

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Psychology MCQs for Subject Specialist

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Psychology MCQs for Subject Specialist
Psychology MCQs for Subject Specialist


1-Psychology may best be described as the scientific study of _______ and ______.
a. Mental states, physical states
b. Thoughts, emotions
c. Behavior, mental processes
d. Mental health, mental illness
e. None of these

2-Freud believed that adult problems usually:
a. Result in Freudian slip
b. Result in bad dreams
c. Can be traced back to critical stage during childhood
d. Are the result of poor behavior
e. None of these

3-Gestalt theory emphasizes:
a. A flow of consciousness
b. The atoms of thought
c. Environmental stimuli
d. Our tendency to see pattern
e. None of these

4-whereas the _______ asked what happens when an organism does something; the _____ asked how and why.
a. Functionalist, behaviorist
b. structuralist, introspectionist
c. structuralist, functionalist
d. Functionalist, structuralist
e. None of these

5-the _____ lobe is to hearing as the occipital lobe is to vision.
a. Frontal
b. Temporal
c. Parietal
d. cerebeller
e. None of these

6-reflexes are usually controlled by the:
a. Medulla
b. Frontal lobe
c. Spinal cord
d. Hypothalamus
e. None of these

7- a part of the brain that sends signals “alert” to higher centers of the brain in response to incoming messages is:
a. Limbic system
b. Reticular formation
c. amygdala
d. Hippocampus
e. None of these

8-perception of the brightness of a color in affected mainly by:
a. The amplitude of light waves
b. The wavelength of light waves
c. The purity of light waves
d. The saturation of light waves
e. None of these

9-which of the following is not a clue for depth perception?
a. Interposition
b. Orientation
c. Linear perspective
d. Reduced clarity
e. None of these

10-psychophysics is the study of:
a. Perceptual illness
b. The psychological perception oh physical stimuli
c. Depth perception
d. Movement perception
e. None of these

11-perceptual constancies are
a. Illusion in which we perceive something that does not correspond to the sensory information
b. Confusing to an individual rather than helping him determine what really exists
c. Likely inborn and not subject to leaning
d. An aid in perceiving a stable and consistent world
e. None of these

12-which of the following is a subdivision of the autonomic nervous system?
a. Both the sympathetic and Para-sympathetic nervous system
b. Only sympathetic nervous system
c. Only the parasympathetic nervous system
d. Brain and spinal cord
e. None of these

13-any stimulus that follows a behavior and increases the likelihood that the behavior will be repeated is called a:
a. Cue
b. Situational stimulus
c. reinforcer
d. Punisher
e. None of these

14-Conditioned response may be eliminated by withdrawing reinforcement. This is known as:
a. Stimulus generalization
b. Extinction
c. Discrimination
d. Spontaneous recovery
e. None of these

15- the ability to learn by observing a model or receiving instructions, without reinforcement, is called_____
a. Cognitive learning
b. Contingency
c. Social learning
d. Instrumental learning
e. None of these

16-analysis of avoidance learning suggest that many phobias are acquired through ______ conditioning.
a. Classical
b. Operant
c. Reinforcement
d. Intermittent
e. None of these

17-the James-Lange or body reaction theory of emotion says
a. You feel emotion then a bodily reaction
b. You react with your body first then you feel emotion
c. The somatic nervous system is the seat of emotion
d. Emotions and visceral reactions are simultaneous
e. None of these

18-the frustration-aggression hypothesis;
a. Assume that aggression is basic instinct
b. Claims that frustration and aggression are both instinctive
c. Assumes that frustration produces aggression
d. Was developed by social learning theorist
e. None of these

19-in Freud’s theory of personality
a. The ego obeys the reality principle
b. The id operates by secondary process
c. The superego obeys the pleasure principle
d. The ego operates by primary process thinking
e. None of these

20-which of the following approaches to personality is least deterministic?
a. The humanistic approach
b. The psychoanalytic approach
c. The social learning approach
d. The behavioral approach
e. None of these
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Friday, 26 February 2016

Monday, 13 April 2015

Important MCQs Of PSYCHOLOGY

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Important MCQs Of 
PSYCHOLOGY
Important MCQs Of  PSYCHOLOGY
The term “Phenomenology” refers to: 

(a) The science of perception 
(b) The scientific study of “queer” occurrences
(c) The “naïve” description of our immediate experiences
(d) A detailed analysis of our sensations
(e) None of the above

The degree of concentration or dilution of a colour is known as its:

(a) Hue 
(b) Saturation
(c) Volume
(d) Brightness
(e) None of these

Difference in perception among species depends upon:

(a) Habitat
(b) Complexity of nervous system
(c) Receptor mechanisms
(d) All of the above
(e) None of the avove

As compared with adult's perception, the child's percepotion tends to be: 

(a) Les suspceptible to illusion 
(b) Longer in time-perspectivce 
(c) More fully characterized by constancy 
(d) More fully affected by physiognomic properties 
(e) None of the avove

As compared with the figure, the ground appears to be;

(a) Better structured 
(b) Continuous and unbroken
(c) Better localized
(d) More salient in attention
(e) None of these

The concept of adaptation level was introduced by:

(a) Brown
(b) Wertheimer
(c) Kohler
(d) Helson
(e) None of these

By the perceptual organization of stimuli the person's span of attention is:

(a) Increased
(b) Decreased
(c) Devided
(d) Unaffected
(e) None of these

The cue of accomodation is especially effective for:

(a) Long distances
(b) Short distances
(c) Moving objects
(d) both (a) and (c)
(e) None of these

The area of the brain where all the fibers from the skin senses get connected before entering cereberal cortes is the:

(a) Cerebellum
(b) Spinal Cord
(c) Thalamus
(d) Reticular formation 
(e) None of these

The so called primary emotions include:

(a) joy, fear, anger, grief
(b) pain, fear, hate, love
(c) shame, guilt, anger, grief
(d) all of the above
(e) None of these

Factors predisposing an individual toeards feeling of jealousy include:

(a) Insecurity in self-conception
(b) Lack of intesnity of feelings of love
(c) Self hate
(d) All of the above
(e) None of these

Behaviour episodes are:

(a) Organized sequences of behaviour
(b) Characterized by a constant direction of action
(c) Ofter overlapping
(d) All of the above
(e) None of these

Self-assertive behaviour is an example primarily of:

(a) a stimulation motive
(b) a security motive
(c) an abundancy motive
(d) a survival motive
(e) None of these

The emergency-control branch of human nervous system is:

(a) Sympathetic
(b) Parasympathetic
(c) Cerebrospinal
(d) Ventromedial
(e) None of these

The "local" stimulus theory of hunger is associated with the name of:

(a) Anderson
(b) Beach
(c) Cannon
(d) Helson
(e) None of these

Examples of ductless glands are:

(a) Gonads, slivary glands, adrenals
(b) tear glands, salivary glands, gonads
(c) Thyroid, pitutary, tear gland
(d) Adrenal, thyroid, gonads
(e) None of these

In conditioning studies CR and UR:

(a) are usually, but no always, identical
(b) are rarely identical
(c) Have not similarity
(d) Are always identical
(e) None of these

A curve which shows an overall negative slope may show:

(a) negative acceleration
(b) positive acceleration 
(c) linear acceleration 
(d) any one of the above
(e) None of these

The development of any kind of skill depends intimately upon;

(a) Muscle facility
(b) Abstract knowledge
(c) Feedback
(d) Kinesthetic stimulation 
(e) None of these

Aphasia seems to be correlated with lesions to the:

(a) Temporal lobes of brain
(b) Motor Cortex of brain
(c) Cerebellar cortex of brain 
(d) Frontal lobes of brain
(e) None of these

WHAT IS BEHAVIORISM? ALL ABOUT BEHAVIORISM
WHAT IS PSYCHOLOGY? BRIEFLY DISCUSS EARLY SCHOOLS OF PSYCHOLOGY

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Monday, 23 February 2015

explaination of structure and function of different parts of brain

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The nervous system is your body's decision and communication center. The central nervous system (CNS) is made of the brain and the spinal cord and the peripheral nervous system (PNS) is made of nerves. Together they control every part of your daily life, from breathing and blinking to helping you memorize facts for a test. Nerves reach from your brain to your face, ears, eyes, nose, and spinal cord... and from the spinal cord to the rest of your body. Sensory nerves gather information from the environment; send that info to the spinal cord, which then speed the message to the brain. The brain then makes sense of that message and fires off a response. Motor neurons deliver the instructions from the brain to the rest of your body. The spinal cord, made of a bundle of nerves running up and down the spine, is similar to a superhighway, speeding messages to and from the brain at every second.
The brain is made of three main parts: the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus (part of the limbic system). The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons and medulla. Often the midbrain, pons, and medulla are referred to together as the brainstem.
 The cerebrum or cortex is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections, called "lobes": the frontal lobe, parietal lobe, occipital lobe, and temporal lobe. Here is a visual representation of the cortex
What do each of these lobes do?
  • Frontal Lobe- associated with reasoning, planning, parts of speech, movement, emotions, and problem solving
  • Parietal Lobe- associated with movement, orientation, recognition, perception of stimuli
  • Occipital Lobe- associated with visual processing
  • Temporal Lobe- associated with perception and recognition of auditory stimuli, memory, and speech
Note that the cerebral cortex is highly wrinkled. Essentially this makes the brain more efficient, because it can increase the surface area of the brain and the amount of neurons within it. We will discuss the relevance of the degree of cortical folding (or gyrencephalization) later
A deep furrow divides the cerebrum into two halves, known as the left and right hemispheres. The two hemispheres look mostly symmetrical yet it has been shown that each side functions slightly different than the other. Sometimes the right hemisphere is associated with creativity and the left hemispheres is associated with logic abilities Nerve cells make up the gray surface of the cerebrum which is a little thicker than your thumb. White nerve fibers underneath carry signals between the nerve cells and other parts of the brain and body.
The neocortex occupies the bulk of the cerebrum. This is a six-layered structure of the cerebral cortex which is only found in mammals. It is thought that the neocortex is a recently evolved structure, and is associated with "higher" information processing by more fully evolved animals (such as humans, primates, dolphins, etc). For more information about the neocortex,
 The cerebellum, or "little brain", is similar to the cerebrum in that it has two hemispheres and has a highly folded surface or cortex. This structure is associated with regulation and coordination of movement, posture, and balance.
The cerebellum is assumed to be much older than the cerebrum, evolutionarily. What do I mean by this? In other words, animals which scientists assume to have evolved prior to humans, for example reptiles, do have developed cerebellums. However, reptiles do not have neocortex.
The limbic system, often referred to as the "emotional brain", is found buried within the cerebrum. Like the cerebellum, evolutionarily the structure is rather old.
This system contains the thalamus, hypothalamus, amygdala, and hippocampus. Here is a visual representation of this system, from a midsagittal view of the human brain:


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Wednesday, 4 February 2015

What Is Behaviorism? All About Behaviorism

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What Is Behaviorism? 

All About Behaviorism

What Is Behaviorism? All About Behaviorism


What Is Behaviorism?

Basic Assumptions:

1.   Behaviorist School of Psychology was founded by John B.Watson.
2.   Based on the belief that behaviors can be measured, trained, and changed.

3.   Behaviorism was established with the publication of Watson's classic paper in
1913: ―Psychology as the Behaviorist Views It.‖

4.   According to behaviorism, behavior can be studied in a systematic and observable manner with no consideration of internal mental states.

5.   This school of thought suggests that only observable behaviors should be studied, since internal states such as cognitions, emotions and moods are too subjective.

6.   Behaviorism, also known as behavioral psychology, is a theory of learning based upon the idea that all behaviors are acquired through conditioning. Conditioning occurs through interaction with the environment. Behaviorists believe that our responses to environmental stimuli shape our behaviors.




There are two major types of conditioning:

 Classical conditioning:


It is a technique used in behavioral training in which a naturally occurring stimulus is paired with a response. Next, a previously neutral stimulus is paired with the naturally occurring stimulus. Eventually, the previously neutral stimulus comes



Shah to evoke the response without the presence of the naturally occurring stimulus. The two
elements are then known as the conditioned stimulus and the conditioned response.





 Operant conditioning:


Operant conditioning (sometimes referred to as instrumental conditioning) is a method of learning that occurs through rewards and punishments for behavior. Through operant conditioning, an association is made between a behavior and a consequence for that behavior.

 Major Thinkers in Behaviorism

·  Ivan Pavlov
·  B. F. Skinner
·  Edward Thorndike
·  John B. Watson
·  Clark Hull

Important Events in Behaviorism


Ø      1863 - Ivan Sechenov's Reflexes of the Brain were published. Sechenov introduced the concept of inhibitory responses in the central nervous system.

Ø      1900 - Ivan Pavlov began studying the salivary response and other reflexes.

Ø      1913 - John Watson's Psychology as a Behaviorist Views It was published. The article outlined the many of the main points of behaviorism.

Ø      1920 - Watson and assistant Rosalie Rayner conducted the famous "Little Albert" Experiment.

Ø      1943 - Clark Hull's Principles of Behavior was published.

Ø      1948 - B.F. Skinner published Walden II in which he described a utopian society founded upon behaviorist principles.

Ø      1959 - Noam Chomsky published his criticism of Skinner's behaviorism, "Review of Verbal Behavior."

Ø      1971 - B.F. Skinner published his book Beyond Freedom and Dignity, in which he argued that free will is an illusion.






Criticisms of Behaviorism


1.   Many critics argue that behaviorism is a one-dimensional approach to understanding human behavior and that behavioral theories do not account for free will and internal influences such as moods, thoughts and feelings.

2.   Behaviorism does not account for other types of learning, especially learning that occurs without the use of reinforcement and punishment.

3.   People and animals are able to adapt their behavior when new information is introduced, even if a previous behavior pattern has been established through reinforcement.












Strengths of Behaviorism


1.   Behaviorism is based upon observable behaviors, so it is easier to quantify and collect data and information when conducting research.

2.   Effective therapeutic techniques such as intensive behavioral

intervention, behavior analysis, token economies and discrete trial training are all rooted in behaviorism. These approaches are often very useful in changing maladaptive or harmful behaviors in both children and adults.


Final Thoughts 

While behaviorism is not as dominant today as it was during the middle of the 20th-century, it still remains an influential force in psychology. Outside of psychology, animal trainers, parents, teachers and many others make use of basic behavioral principles to help teach new behaviors and discourage unwanted ones.

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