Background: Minor physical anomalies (MPAs) are congenital morphological abnormalities linked to disruptions of fetal development. MPAs are common in 22q11.2 deletion syndrome (22q11DS) and psychosis spectrum disorders (PS) and likely represent a disruption of early embryologic development that may help identify overlapping mechanisms linked to psychosis in these disorders.
View Article and Find Full Text PDFBackground: There are contradictory research findings regarding whether individuals with Autism Spectrum Disorders (ASDs) are more or less likely to commit crimes. The aims of the current study were to: (1) Describe psychiatric and crime-related characteristics of a large group of offenders with ASD who had undergone a Forensic Psychiatric Investigation (FPI). (2) Identify clinical subgroups among this group of offenders.
View Article and Find Full Text PDFObjective: Examination of gender and diversity issues within clinical neuropsychology, using data from the 2020 professional practice and "salary survey."
Methods: Clinical neuropsychologists in the U.S.
Neurofibromatosis Type 1 (NF1) is a common genetic disorder frequently associated with cognitive deficits. Despite cognitive deficits being a key feature of NF1, the profile of such impairments in NF1 has been shown to be heterogeneous. Thus, we sought to quantitatively synthesize the extant literature on cognitive functioning in NF1.
View Article and Find Full Text PDFInt Forum Allergy Rhinol
April 2022
Background: The literature regarding clinical olfaction, olfactory loss, and olfactory dysfunction has expanded rapidly over the past two decades, with an exponential rise in the past year. There is substantial variability in the quality of this literature and a need to consolidate and critically review the evidence. It is with that aim that we have gathered experts from around the world to produce this International Consensus on Allergy and Rhinology: Olfaction (ICAR:O).
View Article and Find Full Text PDFThe current study summarizes the results of a 2020 survey that solicited information regarding backgrounds, beliefs, practices, and incomes of clinical neuropsychologists who practice in Canada. Clinical neuropsychologists who practice in Canada were invited to participate in an online survey that was available from 1/17/20 to 4/02/20. Available survey findings were obtained from 111 respondents, which reflects a response rate of 51.
View Article and Find Full Text PDFThis portion of the 2020 survey updates practice information, beliefs, and income data of clinical neuropsychologists who practice within the United States. Doctoral-level neuropsychology practitioners were invited via numerous methods, with multiple reminders, to participate in a web-based survey from January 17 through April 2, 2020. The useable U.
View Article and Find Full Text PDFObjective: Within a portion of the 2020 professional practice and "salary survey," to update key information regarding neuropsychology postdoctoral trainees.
Methods: Postdoctoral trainees were contacted via a variety of membership listings, including the listserv used by the program directors of the Association of Postdoctoral Programs in Clinical Neuropsychology (APPCN). Invitations sent in multiple waves to members of numerous neuropsychological organizations via e-messages and physical postcards included the request that postdoctoral trainees participate.
Noninvasive brain stimulation techniques, such as transcranial direct current stimulation (tDCS) and transcranial magnetic stimulation (TMS), paired with behavioral language therapy, have demonstrated the capacity to enhance language abilities in primary progressive aphasia (PPA), a debilitating degenerative neurological syndrome that leads to declines in communication abilities. The aim of this meta-analysis is to systematically evaluate the efficacy of tDCS and TMS in improving language outcomes in PPA, explore the magnitude of effects between stimulation modalities, and examine potential moderators that may influence treatment effects. Standard mean differences for change in performance from baseline to post-stimulation on language-related tasks were evaluated.
View Article and Find Full Text PDFGlutamate (Glu) is a key molecule in cellular metabolism, the most abundant excitatory neurotransmitter in the brain, and the principal neurotransmitter of cortical efferents. Glutamate dysfunction, on the other hand, is common in neurodegenerative disorders, and likely contributes to age-related declines in behavioral and cognitive functioning. Nonetheless, the extant literature measuring age-related changes in brain glutamate in vivo has yet to be comprehensively and quantitatively summarized.
View Article and Find Full Text PDFA quantitative review of literature concerning olfactory function in 22q11.2 deletion syndrome (22q11DS) patients was performed detailing the scope/magnitude of deficits and probing possible moderators. We searched MEDLINE, EMBASE and PubMed to identify studies for inclusion.
View Article and Find Full Text PDFBrain iron is vital to multiple aspects of brain function, including oxidative metabolism, myelination, and neurotransmitter synthesis. Atypical iron concentration in the basal ganglia is associated with neurodegenerative disorders in aging and cognitive deficits. However, the normative development of brain iron concentration in adolescence and its relationship to cognition are less well understood.
View Article and Find Full Text PDFOlfactory dysfunction is recognized in neurodevelopmental disorders and may serve as an early indicator of global dysfunction. The present meta-analysis measures olfaction effect sizes in attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorders (ASDs), and obsessive-compulsive disorder (OCD). Meta-analysis included 320 ADHD, 346 ASD, and 208 OCD individuals as compared to 910 controls.
View Article and Find Full Text PDFJ Ment Health Policy Econ
September 2019
Background: Recovery high schools (RHS) provide a supportive educational and therapeutic environment for students subsequent to treatment for substance use disorders (SUDs). Most students served by RHSs have concurrent mental health disorders and are at risk for school failure or dropout and substance use relapse.
Aims Of The Study: The central question addressed is whether RHSs are economically efficient alternatives to other high school settings for students in recovery.
Olfactory dysfunction in epilepsy is well-documented in several olfactory domains. However, the clinical specificity of these deficits remains unknown. The aim of this systematic meta-analysis was to determine which domains of olfactory ability were most impaired in individuals with epilepsy, and to assess moderating factors affecting olfactory ability.
View Article and Find Full Text PDFOlfactory functioning is a promising biomarker for psychosis in 22q11.2 deletion syndrome (22q11DS) but has not been well studied to date. This is a pilot effort to evaluate the potential for tests of olfactory functioning to contribute to risk and resilience prediction in 22q11DS, and is the first study to evaluate relationships among olfactory deficits, cognition and psychosis-spectrum symptoms.
View Article and Find Full Text PDFThe Montreal Cognitive Assessment (MoCA) is one of the most common screening instruments for mild cognitive impairment. However, the standard MoCA is approximately two times longer to administer than the Mini-Mental State Examination. A total of 699 Czech and 175 American participants received the standard MoCA Czech and English versions and in the clinical part, a sample of 102 nondemented patients with Parkinson's disease (PD).
View Article and Find Full Text PDFThe 22q11.2 deletion syndrome (22q11.2DS) is a known risk factor for development of schizophrenia and is characterized by a complex neuropsychological profile.
View Article and Find Full Text PDFAlthough temporal lobe epilepsy (TLE) and resection (TLR) impact olfactory eloquent brain structures, their influences on olfaction remain enigmatic. We sought to more definitively assess the influences of TLE and TLR on olfaction using three well-validated olfactory tests and measuring the tests' associations with the volume of numerous temporal lobe brain structures. The University of Pennsylvania Smell Identification Test and an odor detection threshold test were administered to 71 TLE patients and 71 age- and sex-matched controls; 69 TLE patients and controls received an odor discrimination/memory test.
View Article and Find Full Text PDFBackground: Fine motor impairments are common in neurodegenerative disorders, yet standardized, quantitative measurements of motor abilities are uncommonly used in neurological practice. Thus, understanding and comparing fine motor abilities across disorders have been limited.
Objectives: The current study compared differences in finger tapping, inter-tap interval, and variability in Alzheimer's disease (AD), Parkinson's disease (PD), mild cognitive impairment (MCI), and healthy older adults (HOA).
Arch Clin Neuropsychol
March 2019
Objective: The current study establishes normative Sniffin' Sticks Odor Identification Test (SS-OIT) scores for cognitively intact older adults.
Method: Two hundred and twenty-six cognitively normal older adults were identified as eligible for the current study (Mean Age = 70.49 years; 71.
Objectives: Although olfactory abnormalities are well established in schizophrenia, considerably less work has examined olfactory performance in other neuropsychiatric conditions. In the current study, we examined odor identification, odor discrimination, detection threshold, and odor hedonic processing performance in individuals with bipolar I disorder (n = 43; n = 13 with psychotic features), bipolar II disorder (n = 48), major depressive disorder (MDD) (n = 134), anxiety (n = 48), and no mental disorder (n = 72) who participated in a community-based family study.
Methods: Best estimate DSM-IV diagnoses were based on in-depth personal interviews as well as interviews with family members.
Background: Olfactory impairments are prominent in both schizophrenia and the preceding at-risk state. Their presence prior to illness predicts poor functional outcome. In schizophrenia, these impairments reflect peripheral olfactory structural abnormalities, which are hypothesized to arise during early embryonic development.
View Article and Find Full Text PDFIntroduction: To provide a crosswalk between the recently proposed short Montreal Cognitive Assessment (s-MoCA) and Mini-Mental State Examination (MMSE) within a clinical cohort.
Methods: A total of 791 participants, with and without neurologic conditions, received both the MMSE and the MoCA at the same visit. s-MoCA scores were calculated and equipercentile equating was used to create a crosswalk between the s-MoCA and MMSE.