Capgras delusion (or Capgras syndrome)

From wikipedia:

The Capgras delusion (or Capgras syndrome) (pron: kăhp′grah IPA:/kap·'grɑ:/)^[1] is a disorder in which a person holds a delusionthat a friend, spouse, parent, or other close family member has been replaced by an identical-looking impostor. The Capgras delusion is classified as a delusional misidentification syndrome, a class of delusional beliefs that involves the misidentification of people, places, or objects (usually not in conjunction).^[2] It can occur in acute, transient, or chronic forms. Cases in which patients hold the belief that time has been "warped" or "substituted" have also been reported.^[3]

The delusion most commonly occurs in patients diagnosed with paranoid schizophrenia, but has also been seen in patients suffering from brain injury^[4] and dementia.^[5] It presents often in individuals with a neurodegenerative disease, particularly at an older age.^[6] It has also been reported as occurring in association with diabetes, hypothyroidism andmigraine attacks.^[7] In one isolated case, the Capgras delusion was temporarily induced in a healthy subject by the drug ketamine.^[8] It occurs more frequently in females, with a female:male ratio of 3:2.^[9]

The information gathered from studying people with the Capgras delusion has theoretical implications for understanding face perception and neuroanatomy in both healthy and unhealthy individuals.^[2]

Link - http://en.wikipedia.org/wiki/Capgras_delusion

Notes from the video:

Visual
- a person see - stimulus  reaches the temporal lobe - then there is identification - then it reaches - the amygdala - gateway to the limbic system - that contains the emotional system of  the brain - response to what we look at ( When you see your mom you have love and veneration - an emotion created)

- but for those with rupture of vein connecting to the amygdala (had a car accident and suffered severe head trauma/concussion) - the information processed - but no appropriate response or it is missing - no emotional connection (seeing mother that recognize to looks like mom - but believed to be an impostor)

Auditory
- but when a person suffering from capgras delusion is called over the phone  - the person could identify/recognized the voice and would have proper emotional connection/response to the person talked to (but not seeing just hearing). The auditory nerve has different pathway to the amygdala so a sufferer of capgras delusion will have an appropriate response to an auditory stimulus, voice of loved ones could be identified with an appropriate emotion.

"Closely link is the intellectual view of the world to your basic emotional reaction to the world" - Dr. V.S. Ramachandran, Director of the Center for Brain and Cognition at UCSD

The “New Psychometrics” – Item ResponseTheory

Classical test theory is concerned with the reliability of a test and assumes that the items

within the test are sampled at random from a domain of relevant items. Reliability is seen

as a characteristic of the test and of the variance of the trait it measures. Items are treated

as random replicates of each other and their characteristics, if examined at all, are expressed

as correlations with total test score or as factor loadings on the putative latent variable(s) of

interest. Characteristics of their properties are not analyzed in detail. This led Mellenbergh

(1996) to the distinction between theories of tests (Lord and Novick, 1968) and a theories

of items (Lord, 1952; Rasch, 1960). The so-called “New Psychometrics” (Embretson and

Hershberger, 1999; Embretson and Reise, 2000; Van der Linden and Hambleton, 1997) is a

theory of how people respond to items and is known as Item Response Theory or IRT. Over

the past twenty years there has been explosive growth in programs that can do IRT, and

within R there are at least four very powerful packages: eRm (Mair and Hatzinger, 2007),

ltm Rizopoulos(2006), lme4 (Doran et al., 2007) and MiscPsycho, (Doran, 2010). Additional

packages include mokken (van der Ark, 2010) to do non-metric IRT and plink (Weeks, 2010)

to link multiple groups together. More IRT packages are being added all of the time.

Topics covered:

Chapter 8 - The “New Psychometrics” – Item ResponseTheory

Chapter 9 - Validity

Chapter 10 - Reliability + Validity = Structural Equation Models

Source link - http://bit.ly/1hJT9FL

Use Wikipedia as your Review Material for Psychometrician Licensure Exam

(Image Source - http://us.123rf.com/450wm/radiantskies/radiantskies1301/radiantskies130101036/17197657-abstract-word-cloud-for-validity-with-related-tags-and-terms.jpg)

Wikipedia is definitely the most accessible source of information too many of us with internet connection. Who needs books and text book anyway? But of course the academe will frown on you if you would insist on using wikipedia alone and not the scientific canon! So for psychometrician licensure exam reviewers, to resolve such issue, it is always good to check and refer back to your text books.  Make sure though that you also get the latest  text book at least published 3-5 years back. Psychology is a dynamic field of study that continue to evolve with the latest discoveries and scientific researches.

This is where wikipedia comes handy, the content is updated instantaneously, unlike books that will take time to get revised, but now online versions of text books  (e-books) are also now available and you can get updated version from the sites of the publishers, well the disadvantage of course is the costs.

Just to cite an example, in college in the 1990s, 2-3 decades ago, validity has a different meaning with what has evolved in late 20th century (makes me feel so ancient like a dinosaur). So there is now a different reinterpretation of test validity: a traditional view/classical models and current view/modern models  for validity as it is used and understood in psychological testing.

So compare Test Validity on:

• wikipedia - http://en.wikipedia.org/wiki/Test_validity

• with what is on your textbook - (? year)

• and that of a later  version of textbook say by Miller, McIntire, Lovler (2011), citing  the studies of Brennan, Kane, Goodwin and Leech among others.

• or even a powerpoint presentation Psychometric Principles by Professor John Rust Powerpoint Presentation for the Summer School 2009, Professor John Rust, University of Cambridge  http://psychometricpinas.blogspot.com/2014/01/psychometric-principles-by-professor.html 

• well even the text book by Philippine authors Munarriz and Cervera (2013) still discussed the classical model on test validity.

But then again it is good to know both models, the old and the new and application-wise we would know better which should prevail and more appropriate as concept and in our practice.

So my advise, maximize your internet access and read/review using wikipedia, but double check and refer back to your text book and make sure you get to compare it with a later edition. Supplement your readings with what other materials you can find online from the website of psych organizations (PAP, APA, etc), free online journals, scientific articles, and of course this blog, and even facebook, etc.

And to have some focus on what to read and review refer to this older blog post -
http://psychometricpinas.blogspot.com/p/chedcourse-specification.html


Happy reviewing!

Share your review strategies and materials as well!

Psychometric Principles by Professor John Rust

Powerpoint Presentation for the Summer School 2009

Psychometric Principles
Professor John Rust
University of Cambridge

Source link - http://bit.ly/1agOenJ


 

100 Likes to our page!

Wow Finally 100 Likes to our FB page Philippine Psychometrician Reviewer  and more to come. Encouraging you all to share and post in our page and make it useful for all wanting to become psychometrician and psychologist. Mabuhay!

PRC Board of Psychology Announces October 2014 Board Exams

December 18, 2013


Dear Prospective Psychologists and Psychometricians,

 May you have a God-filled Christmas season and a safe and prosperous 2014.

We, the PRC Board of Psychology, would like to announce that the Board Exams will be held in October, 2014. (Please see the PRC website for the details.)

Much as we had wanted to give the tests in 2013 or early 2014, we could not do so because the faculty who attended the consultation meeting after the PAP Convention (and those who communicated with us later), expressed a desire to give more time to prepare examinees, in view of the new DSM V and the Table of Specifications (TOS) then being crafted. Hence, we opted to abide by the October, 2014 schedule, as already announced in the PRC Calendar for 2014.

With this schedule, we hope that there is enough time for everyone to appreciate the DSM V and to tackle learning areas in the Board Exam subjects not covered in the old curriculum.

After a series of consultations with the representatives of different educational institutions, and several thorough reviews with the CHED Technical Committee for Psych Education/Programs, the Board has now made a Board Resolution for the TOS which is to be published in the website, once approved by the PRC Consultant. We hope that by early January, this would be out.

All the best!


Yours,

Miriam P. Cue, Ph.D.
Imelda V. G. Villar, Ph.D.
Board of Psychology

 (Source: http://pap.org.ph/)

Related link:

http://psychometricpinas.blogspot.com/p/schedule-of-licensure-exam.html

DLSU holds lecture/workshop on psycho-social approaches

DLSU-D Center for Applied Psychology and Student Wellness Center invite you to a Lecture/Workshop titled “Different Approaches in Handling Survivors.” As part of the short-term and long-term continuing preparations for natural and man-made disasters, we are calling anyone interested, especially those within Cavite and other neighboring towns, to join us. The lecture/workshop is focused mainly on psycho-social approaches. This is a FREE LECTURE/WORKSHOP and we have limited slots so you will have to register.  To register, please call (046) 416-4531 loc.3075 or visit JFH 306 and look for Ricky Clores or Romelee Alegre. Schedules: December 10, 2013/ For Non-DLSU-D Community Session 1:     9:00 AM to 12:00 NN Session 2:     1:00 PM to 3:00 PM Speaker/Lecturer: Dr. Jocelyn Mercado of AUP Venue: Bulwagang Jose Basa December 11, 2013/ For DLSU-D Community Session 1:     9:00 AM to 12:00 NN Session 2:     1:00 PM to 3:00 PM Speakers/Lecturers: Dr.Evangeline Ruga Dr. Ann Margaret Martin Mr. Seigfred  Gamueda Venue: Luis Aguado Viewing Room Source - http://www.dlsud.edu.ph/announcement/handlingsurvivorsSEMINAR.htm