The McGurk effect

A phenomenon that occurs when a speech sound does not match the shape of the lips producing it, as when the sound corresponding to the usual pronunciation of the word gay is dubbed on to a video image of a person uttering the word bay, causing the listener to hear a word intermediate between the two (day).

The effect shows that the visual channel conveys important information not just to deaf people but also to listeners with normal hearing. For those with minor hearing loss, speech reading can be a very valuable way to maximize the hearing they still do have. Also, this reveals more about why watching the mouth is so important in intense language learning.

The phenomenon is named after the Scottish psychologist Harry McGurk (1936-98) who co-authored the first article on it, entitled 'Hearing Lips and Seeing Voices' in the journal Nature in 1976.

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The Chameleon Effect

According to authors Chartrand and Bargh ,"The chameleon effect refers to nonconscious mimicry of the postures, mannerisms, facial expressions, and other behaviors of one's interaction partners, such that one's behavior passively and unintentionally changes to match that of others in one's current social environment." (Journal Of Personality and Social Psychology, 1999).

 
How many times have you yawned after viewing another person do it? Or noticed your tone of voice depended on the company you were in. What about meeting up with people from where you used to grow up and now realising that your homeland accent has suddenly started coming out of your mouth...

 

The chameleon effect can happen naturally and frequently because we feel a rapport with people who mimic our moves. Most of us do it automatically to varying degrees, we mimic the people around us all the time without even realizing it.

 

In one study of the chameleon effect, Chartrand and Bargh found that students who rated high on empathy were more likely to imitate others. "Those who pay more attention mimic more," says Chartrand.

 

We also mimic the facial expressions of other people. This is so hardwired that one-month old infants have been shown to smile, stick out their tongues, and open their mouths when they see someone else doing the same (Meltzoff & Moore, 1977).

Unintentional mimicry and imitation functions as a social cohesive. The chameleon effect actually becomes a warm response that facilitates social interactions. Mirroring a persons language shows that you understand your conversation partner, and that you are an empathetic listener.

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''When you are in the company of lunatics, behave like a lunatic. When you are in the company of intelligentsias, speak with brilliance...that is how a chameleon behaves, the territory changes it, and it adapts to the changes.''
                                                                                                                    ~ Michael Bassey Johnson

Chinese Room Argument

The Chinese room argument is a thought experiment. It was first proposed by the US philosopher John Searle (pictured) in the journal Behavioural and Brain Sciences in 1980 , in which many people feel he thoroughly disproved the notion that any computer program could acquire true intelligence. It is one of the best known and widely credited counters to claims of artificial intelligence (AI) - that is, to claims that computers do or at least can (someday might) think.

It was written to demonstrate a simple point - intelligent behaviour does not equate to intelligence. This doesn't mean AI design is impossible, but that a behavioural-based model for intelligence is flawed.

Imagine yourself a monolingual English speaker, ''locked in a room, and given a large batch of Chinese writing'' plus ''a second batch of Chinese script” and ''a set of rules'' in English ''for correlating the second batch with the first batch.'' As Searle explains how it works: ''Suppose that unknown to you the symbols passed into the room are called 'questions' by the people outside the room, and the symbols you pass back out of the room are called 'answers to the questions' ''. Just by looking at your answers, nobody can tell you ''don't speak a word of Chinese.''

The point he makes is that you may hand out the appropriate and even accurate answers and that those responses may serve to connect with the expectations of those asking the questions.  However, it does not indicate that any real understanding has taken place or that any sort of meaning is actually attached to the question and answer process that is taking place.

 

It should be conceded that Searle's argument is effective in showing that certain kinds of machines - even machines that pass the Turing Test - are not necessarily intelligent and do not necessarily "understand" the words that they speak. This is because a computer sitting on a desk with no sensory apparatus and no means of causally interacting with objects in the world will be incapable of understanding a language. Such a machine might be capable of manipulating linguistic symbols, even to the point of producing output that will fool human speakers and thus pass the Turing Test. However, the words produced by such a machine would lack one crucial ingredient: The words would fail to express any meaningful content and thus would fail to be "about" anything.

What's the point?

It doesn't matter how perfectly a computer is designed to simulate the intelligence of a human being - because its behaviour is a result of aimlessly executing instructions, not understanding. In this case, the means defines the end. You're reading this sentence, and understanding it without demonstrating behaviour of any kind. A system's behaviour doesn’t indicate intelligence or understanding, and a system that behaves intelligently is not necessarily ''intelligent.''
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Before we work on artificial intelligence why don't we do something about natural stupidity

The Matrix: Was Neo Psychotic?





Auditory Hallucinations

Psychosis is a mental health problem that can  stop the person from thinking clearly, telling the difference between reality and their imagination, and acting in a normal way.

Morpheus: What is "real"? How do you define "real"?

It is a loss of contact with reality that usually includes delusions and hallucinations. Delusions are false beliefs about what is taking place or who one is, such as thinking that someone is plotting against you or that the TV is sending you secret messages. Hallucinations are false perceptions, such as hearing, seeing, or feeling something that is not there. 

Neo: What did she tell you?

Morpheus: That I would find the One. 

Signs of Psychosis

The early stage of psychosis is marked by a difficulty in concentrating, depressed mood, sleep changes - sleeping too much or not enough, anxiety, suspiciousness, withdrawal from family and friends and on-going unusual thoughts and beliefs. While the later stages involve being confused and having impaired reality testing; that is, people are unable to distinguish personal, subjective experiences from the reality of the external world. This can progress onto delusions, hallucinations, disorganized speech (switching topics erratically), difficulty functioning, depression and even suicidal thoughts or actions.

 

Morpheus: I see it in your eyes. You have the look of a man who accepts what he sees because he is expecting to wake up. Ironically, that's not far from the truth.

Causes:


A Psychoactive Aetiology?

A number of medical problems can cause psychosis, including:

- Alcohol and certain illegal drugs (or blue and red pills?)

- Brain diseases, such as Parkinson's  
- Huntington's disease, and certain chromosomal disorders

- Brain tumours or cysts

- Dementia (including Alzheimer's disease)

- HIV and other infections that affect the brain

- Some prescription drugs, such as steroids and stimulants

- Some types of epilepsy

- Stroke

Symptoms:

Psychotic symptoms may include: disorganized thought and speech, false beliefs that are not based in reality (delusions), especially unfounded fear or suspicion, and thoughts that "jump" between unrelated topics (disordered thinking).

Neo: I thought it wasn't real

Morpheus: Your mind makes it real

Exams and tests:

Psychiatric evaluation and testing are used to diagnose the cause of the psychosis. Laboratory testing and brain scans may not be needed, but sometimes can help pinpoint the diagnosis. The type of tests may include; blood tests for abnormal electrolyte and hormone levels, blood tests for syphilis and other infections, drug screens, and sometimes an MRI of the brain.



''Yeah...ehmm...sorry about that''

Possible Complications:

Psychosis can prevent people from functioning normally and caring for themselves. If the condition is left untreated, people can sometimes harm themselves or others (or Trinity).



 Morpheus: You've been living in a dream world, Neo.

 

 

''Your 50 minutes are up young man''

 

Treatment often depends on the cause of the psychosis. It might involve drugs to control symptoms and talk therapy, which can help address the underlying cause of the psychosis.

For example the talking therapy cognitive behavioural therapy has proved successful in helping people with schizophrenia.  Hospitalization is an option for serious cases where a person might be dangerous to himself or others.



''Perhaps we are asking the wrong questions'' ~ Agent Brown 

 

Social support should also be addressed, so as to help support the person with psychosis, who may have social needs such as education, employment or accommodation.

 

 

 

 

 

  

 

 

Agent Smith: It seems that you've been living two lives. One life, you're Thomas A. Anderson, program writer for a respectable software company. You have a social security number, pay your taxes, and you... help your landlady carry out her garbage. The other life is lived in computers, where you go by the hacker alias "Neo" and are guilty of virtually every computer crime we have a law for. One of these lives has a future, and one of them does not.

''The need to prove who you are will vanish once you know who you are''
~ Pierre

 

 

 

 

Similar to Parkinson's Disease and Schizophrenia, dopamine levels are thought to be too high during psychosis, or better, there is a 'functional excess' of dopamine in the person's brain. This can affect memory, emotion, social behaviour and self-awareness.

Bizarre delusions are often experienced during psychosis.

Examples of psychotic delusions include the paranoid type - more likely to be associated with schizophrenia - and delusions of grandeur.



''Sure ye do''



Delusions of grandeur: clearly false but strongly held beliefs in having a special power or authority - the person with psychosis may, as examples, believe that they are a world leader, very rich, that they are able to bring dead people back to life, or that they can control the weather.

 

While the classic hallmarks of psychosis are hallucination and delusion, other symptoms persist in disorders such as schizophrenia - known as negative symptoms. That is, cognitive and motivational impairments, which can be disabling and do not respond to drug treatment.



I think he saw me...

 

 

Paranoid delusions: these may cause the person with psychosis to be unduly suspicious of individuals or organisations, believing them to be plotting to cause them harm. Such delusions can be very frightening and may result in unusual behaviour to avoid things - for example, staying out of a room with certain devices in it, believing them to be controlling thoughts, or locking up the front door with an excessive number of padlocks.

 

Similar to Eric Bui and colleagues examining Borderline Personality Disorder and Darth Vader (2010), it is interesting to compare a disorder with something relevant, in an attempt to try and identify with it. While one is the work of fiction and the other a real life debilitating disorder, slight overlap can be seen and the crude comparisons hopefully elucidate the disorder a little.

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Freudenreich O, Weiss AP, Goff DC. Psychosis and schizophrenia. In: Stern TA, Rosenbaum JF, Fava M, Biederman J,    Rauch SL, eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 1st ed. Philadelphia, Pa: Mosby Elsevier; 2008:chap 28.

 

Katherine Darton, Mind. Psychotic experiences. London, UK: Mind, 2011. Information published online, accessed November 21st, 2013.

MedlinePlus. Psychosis. Bethesda, MA, US: National Library of Medicine, National Institutes of Health, Department of Health and Human Services.

 

NHS Choices. Causes of psychosis. London, UK: National Health Service.

 

Van Os J, Kapur S. Schizophrenia. The Lancet, 2009, volume 374, number 9690, pages 635-645 (DOI: 10.1016/S0140-6736(09)60995-8).

WHO. Chapter V: Mental and behavioural disorders. In: International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10). Geneva, Switzerland: World Health Organization, 2010.

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''Minds that have withered into psychosis are far more terrifying than any character of fiction''
                                                                                                                                   ~ Christian Baloga

Schizophrenia

Unlike the disruptions of mental tranquillity that disturb everyone from time to time, schizophrenic episodes represent a severe departure from normal mental functioning. The disorder has a distinctly biological character, suggesting that its fierce psychotic episodes reflect physiological alterations in normal brain function.

Schizophrenia is the diagnostic term for a family of severe mental disorders that involve psychotic features - a loss of contact with reality - and a widespread deterioration of the level of mental functioning affecting multiple psychological processes (Kandel, 1991). The disorder always involves delusions, hallucinations, or characteristic disturbances in the form of thought. By definition, schizophrenic disorders are relatively long lasting: brief, isolated psychotic episodes are not classified as schizophrenic. Schizophrenia, strictly defined, has an incidence of approximately 1 in 200. Rates of schizophrenia are generally similar from country to country - about 1 percent of the population. There are variations - but the variance is difficult to track due to differing measuring standards in many countries, etc. It is equally common in men and women.

Delusions are a major abnormality in the content of thought. Schizophrenic delusions - false beliefs about external reality - are often persecutory, as in the belief that a television newscaster is making fun of the viewing individual. Other typical delusions are more bizarre: The individual may believe that his or her thoughts are being broadcast so that everyone nearby can hear them, or that other people are inserting thoughts and their behaviour is controlled by others, perhaps by radio waves. Such delusional beliefs represent a marked failure in assessing reality.

Characteristic abnormalities in the form of thought also frequently occur. Most common is a loosening of associations , in which ideas shift from one topic to another in an apparently unrelated manner. When this is severe, speech becomes incoherent.

Hallucinations - perception without external stimulation of the sensory systems - are also characteristic of schizophrenia. Most hallucinations are auditory, involving voices that may make insulting statements or provide a continuing critical commentary on the individual's behaviour. Tactile and somatic hallucinations, such as the perception of snakes crawling inside the abdomen, also occur. However, visual hallucinations are less common.

The emotions of the schizophrenic patient are usually flattened or inappropriate. ''Flattened'' means a loss of emotional intensity: the patient speaks in a monotone, the face is expressionless, and the patient reports that normal feelings are no longer experienced. At other times, emotion may be present but is inappropriate to the circumstance.

The combination of symptoms leads to a gross distortion of the person's interactions with the real world. There is a deterioration in functioning, resulting in part from a preoccupation with internal thoughts and fantasies. In many cases, the acute active phase of florid schizophrenic symptoms persists for a prolonged period. It may be followed by a relative remission of symptoms, but a complete return to normal function is extremely unusual. In fact, such a recovery calls into question the original diagnosis of schizophrenia.

Despite the bizarre and florid nature of the schizophrenic symptoms, there is still considerable controversy as to the nature of the disorder. Many investigators believe that schizophrenia is not a single disease but forms a group of related psychotic disorders.

In schizophrenia, there seems to be an inheritable predisposition or susceptibility to the disorder. In the general population, the risk of schizophrenia is less than 1 percent. However, this risk is much greater for relatives of schizophrenics. The parents of a schizophrenic child have about a 5 percent risk of schizophrenia, the siblings of a schizophrenic have about a 10 percent risk, and the children of a schizophrenic parent have about a 14 percent chance of developing the disorder. If both parents are schizophrenic, the child has a risk factor of about 50 percent.

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''If you talk to God, you are praying; If God talks to you, you have schizophrenia.''
                                                                                                         ~ Thomas Szasz