Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Negative and Cognitive Symptoms of Schizophrenia

Negative and Cognitive Symptoms of Schizophrenia

Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...

Biological Causes of Schizophrenia

Biological Causes of Schizophrenia

Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.

Intellectual Disability

Intellectual Disability

Intellectual disability (ID) is a neurodevelopmental condition characterized by deficits in intellectual and adaptive functioning that manifest during the developmental period. This condition encompasses challenges in reasoning, memory, problem-solving, and learning, accompanied by impairments in everyday life skills, such as communication, self-care, and social interactions. Intellectual disability affects approximately 1% of the population in the United States, impacting an estimated 5...

Alzheimer Disease ll: Pathophysiology

Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes loosely...

Language and Cognition

Language and Cognition

Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Planning of kidney replacement therapy in advanced CKD using the KFRE formula in a Spanish multicenter cohort.

Clinical kidney journal·2026

Same author

Long-term eculizumab treatment failure in C3 glomerulonephritis: two case reports.

Clinical kidney journal·2026

Same author

Baseline and follow-up association between adiposity and renal function: data from the ILERVAS cohort.

Obesity facts·2026

Same author

A nephrology perspective on the clinical impact and management of delayed high-dose methotrexate elimination.

Expert review of anticancer therapy·2026

Same author

Increased circulating ACE2 and GAS6 are independent predictors of COVID-19 severity.

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases·2026

Same author

Metabolic Kidney Disease: A New Concept in the Interaction Between Obesity, Prediabetes, Diabetes and Liver Dysfunction.

Giornale italiano di nefrologia : organo ufficiale della Societa italiana di nefrologia·2026

Search research articles

Related Experiment Video

Updated: Jul 15, 2026

Development of a Virtual Reality Assessment of Everyday Living Skills

Development of a Virtual Reality Assessment of Everyday Living Skills

Published on: April 23, 2014

Intellectual functioning and memory deficits in schizophrenia.

Juan Carlos Ruiz¹, María José Soler, Inma Fuentes

¹Department of Methodology, Facultad de Psicología, University of Valencia, 46010 Valencia, Spain. jcruiz@uv.es

Comprehensive Psychiatry

|April 21, 2007

Summary

Cognitive deficits in schizophrenia are linked to intellectual functioning. Conceptual implicit memory impairment may be a key feature of schizophrenia, impacting treatment and rehabilitation strategies.

More Related Videos

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

Related Experiment Videos

Last Updated: Jul 15, 2026

Development of a Virtual Reality Assessment of Everyday Living Skills

Development of a Virtual Reality Assessment of Everyday Living Skills

Published on: April 23, 2014

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

Area of Science:

Neuroscience
Psychiatry
Cognitive Psychology

Background:

Schizophrenia presents with diverse patient subgroups based on intellectual ability (IQ).
Understanding cognitive deficits, particularly memory, in relation to IQ is crucial for tailoring schizophrenia treatment and rehabilitation.
Identifying preserved and impaired cognitive functions alongside intellectual patterns aids in patient stratification.

Purpose of the Study:

To investigate the relationship between cognitive deficits and intellectual functioning in schizophrenia patients.
To explore how different memory types (explicit, implicit, everyday) are associated with IQ in schizophrenia.
To determine if implicit memory deficits are a core feature of schizophrenia.

Main Methods:

44 schizophrenia patients underwent a comprehensive neurocognitive assessment.
Cognitive battery included executive functioning, attention, processing speed, working memory, and various memory types.
Patients were divided into two subgroups based on IQ (cutoff 85) to compare cognitive performance.

Main Results:

Executive functioning, attention, working memory, and everyday memory performance correlated with intellectual functioning.
Speed of information processing, explicit memory, and implicit memory were not associated with IQ.
Schizophrenia patients showed similar performance in perceptual implicit memory but deficits in conceptual implicit memory compared to controls.

Conclusions:

Cognitive deficits in schizophrenia are significantly associated with intellectual functioning.
Implicit memory is not a monolithic construct; perceptual and conceptual implicit memory differ in schizophrenia.
Conceptual implicit memory deficits may represent a core characteristic of schizophrenia, informing therapeutic approaches.