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Articles 151 - 180 of 225

Full-Text Articles in Experimental Analysis of Behavior

Exercise Behavior Patterns In Emerging Adulthood: An Exploration Of Predictor Variables From Self-Determination Theory And Transtheoretical Model, Chad R. Johnson Jan 2014

Exercise Behavior Patterns In Emerging Adulthood: An Exploration Of Predictor Variables From Self-Determination Theory And Transtheoretical Model, Chad R. Johnson

College of Graduate Studies: Theses & Dissertations

During the transition from childhood to adulthood, young people establish patterns of behavior and make lifestyle choices that affect both their current and future health (NCHS, 2010). Emerging adulthood – a new conception of development for the period from the late teens through the twenties – focuses on individuals ages 18-25 who did not have a child, own a home, or have sufficient income to be fully independent (Arnett, 2000). Very little is known about social influence, motivational mediators, and motivation on exercise behavior within this developmental period. Therefore, the purpose of this study was to determine the influence of …


Effects Of Anger Awareness And Expression Training Versus Relaxation Training On Headaches: A Randomized Trial, Olga Slavin-Spenny, Mark A. Lumley, Elyse R. Thakur, Dana C. Nevedal, Alaa M Hijazi Sep 2013

Effects Of Anger Awareness And Expression Training Versus Relaxation Training On Headaches: A Randomized Trial, Olga Slavin-Spenny, Mark A. Lumley, Elyse R. Thakur, Dana C. Nevedal, Alaa M Hijazi

Psychology Faculty Research Publications

Background and purpose: Stress contributes to headaches, and effective interventions for headaches routinely include relaxation training (RT) to directly reduce negative emotions and arousal. Yet, suppressing negative emotions, particularly anger, appears to augment pain, and experimental studies suggest that expressing anger may reduce pain. Therefore, we developed and tested anger awareness and expression training (AAET) on people with headaches.

Methods: Young adults with headaches (N = 147) were randomized to AAET, RT, or a wait-list control. We assessed affect during sessions, and process and outcome variables at baseline and 4 weeks after treatment.

Results: On process measures, …


Adverse Childhood Experiences, Disability And Health-Risk Behaviors, Sophia Miryam Schussler-Fiorenza Rose Md, Phd Aug 2013

Adverse Childhood Experiences, Disability And Health-Risk Behaviors, Sophia Miryam Schussler-Fiorenza Rose Md, Phd

Population Health Matters (Formerly Health Policy Newsletter)

No abstract provided.


Treatment Of Psychiatric Inpatients With Relationship Dysfunction Using A Short Term Cognitive Interpersonal Intervention: A Pilot Study, Tamra Rasberry Jul 2013

Treatment Of Psychiatric Inpatients With Relationship Dysfunction Using A Short Term Cognitive Interpersonal Intervention: A Pilot Study, Tamra Rasberry

Doctoral Dissertations and Projects

Relationship conflict for the psychiatric patient can have significant detrimental effects. There are specific types of interactions that can increase conflict and predict the potential for relapse; these have been identified by research and designated as components of Expressed Emotion (EE). Cognitive Behavioral Therapy (CBT) and Interpersonal Therapy (IPT) have been very effective when targeting specific psychiatric diagnoses, but less effective when addressing relationship conflict. The majority of studies addressing relationship conflict have taken place in an outpatient, long-term setting. There is limited research that utilizes an inpatient short-term intensive therapy with relationship conflict as its sole focus, targeting areas …


Alternative Hospital Gift Bags And Breastfeeding Exclusivity, Yeon Bai, Shahla M. Wunderlich, Rickie Kashdan Jun 2013

Alternative Hospital Gift Bags And Breastfeeding Exclusivity, Yeon Bai, Shahla M. Wunderlich, Rickie Kashdan

Department of Nutrition and Food Studies Scholarship and Creative Works

The type of gift bags given to new mothers at the time of discharge from the hospital can influence their confidence in breastfeeding. Most hospitals in the US continue to distribute commercial gift bags containing formula samples despite the reported negative influence of commercial bags on the duration of breastfeeding. This study compared breastfeeding outcomes in women receiving three different kinds of gift bags at discharge. A prospective intervention study was conducted during the 2009-2010 in New Jersey. Three breastfeeding cohorts were recruited and assigned to three groups: COMMERCIAL received discharge bags containing formula samples, BF-INFO received breastfeeding information and …


Explorations Into Continuity: An Heuristic, Artistic Inquiry Into The Interplay Between Work As A Dance/Movement Therapist And Service Within The Bahá’Í Community, Elena M. Rezai May 2013

Explorations Into Continuity: An Heuristic, Artistic Inquiry Into The Interplay Between Work As A Dance/Movement Therapist And Service Within The Bahá’Í Community, Elena M. Rezai

Creative Arts Therapies Theses

The purpose of this thesis was to explore the concept of integration between two main aspects of my life: my professional career as a dance/movement therapist on an inpatient adolescent behavioral health unit, and service guided by Bahá’í teachings in a neighborhood-based setting. Literature reviewed encompassed instances of Rudolf von Laban’s Effort elements found in the Bahá’í Writings, as well as research on the integration between the mind, body and spirit, the history of religion and mental health, and the current relationship between religion and mental health. Both artistic inquiry and heuristic methodologies were used to guide my research. Through …


Resistance Training Behaviors In College-Aged Women 2013, Melanie Kornblatt May 2013

Resistance Training Behaviors In College-Aged Women 2013, Melanie Kornblatt

Master's Theses

The purpose of this study was to develop an understanding of women’s training behavior in the weight room. A secondary purpose was to determine what their beliefs and perceptions were in regards to lifting weights. Participants were college-aged females ranging in age from 17-29 years. Observations of weight lifting activities were conducted during peak hours of operation (Mondays, Wednesdays, and Fridays from 3- 6pm) in the fitness facility. A total of 60 hours of observations were conducted over a period of four weeks. In addition to observations, two focus groups were conducted. Participants were divided into two specific groups: I …


Characteristics Of Subjects Who Avoid Activities And Participation Due To A Fear Of Falling In Parkinson’S Disease, Russell Gourlie, Spencer Sorensen, Rithea Vong May 2013

Characteristics Of Subjects Who Avoid Activities And Participation Due To A Fear Of Falling In Parkinson’S Disease, Russell Gourlie, Spencer Sorensen, Rithea Vong

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: The purpose of this study is to examine and identify key characteristics of and differences between people with Parkinson’s Disease (PD) who exhibit moderate/high fear of falling avoidance behaviors and those that exhibit low fear of falling avoidance behaviors.

Subjects: A total of 24 subjects (5 females, 19 males; mean age= 72.2, SD=9.1) participated in this study.

Methods: A cross-sectional design was used to identify descriptive characteristics of subjects with PD associated with moderate/high levels of fear avoidance behavior (MHA) or low levels of fear avoidance (LA) as measured by the Fear of Falling Avoidance-Behavior …


The Effects Of Selected Drugs On The Memory Recall Of Sleep Deprived Mice, Jenn Pauldurai Apr 2013

The Effects Of Selected Drugs On The Memory Recall Of Sleep Deprived Mice, Jenn Pauldurai

Capstone Research Projects

Humans often make use of the neurotransmission altering effects of drugs such as caffeine, ephedrine, and ethanol. These drugs induce changes in memory and learning ability, specifically when used for sleep deprivation. English white mice (Mus musculus) have been shown to exhibit similar cognitive changes when administered drugs while sleep deprived. A sample of 20 mice was divided into three experimental groups (each group receiving a different drug) and one control group. Maze-testing demonstrated that mice performance decreased with sleep deprivation (Treatment-1) but all groups returned to baseline performance when injected (IP) with selected drugs (Treatment-2), regardless of …


Lateralized Difference In Tympanic Membrane Temperature: Emotion And Hemispheric Activity, Ruth E. Propper, Tad T. Brunyé Mar 2013

Lateralized Difference In Tympanic Membrane Temperature: Emotion And Hemispheric Activity, Ruth E. Propper, Tad T. Brunyé

Department of Psychology Faculty Scholarship and Creative Works

We review literature examining relationships between tympanic membrane temperature (TMT), affective/motivational orientation, and hemispheric activity. Lateralized differences in TMT might enable real-time monitoring of hemispheric activity in real-world conditions, and could serve as a corroborating marker of mental illnesses associated with specific affective dysregulation. We support the proposal that TMT holds potential for broadly indexing lateralized brain physiology during tasks demanding the processing and representation of emotional and/or motivational states, and for predicting trait-related affective/motivational orientations. The precise nature of the relationship between TMT and brain physiology, however, remains elusive. Indeed the limited extant research has sampled different participant populations …


The Effect Of Visual Wulst Lesions And Trigeminal Nerve Sectioning On The Discrimination Of Magnetic Inclination In The Homing Pigeon (Columba Livia), Merissa Acerbi Jan 2013

The Effect Of Visual Wulst Lesions And Trigeminal Nerve Sectioning On The Discrimination Of Magnetic Inclination In The Homing Pigeon (Columba Livia), Merissa Acerbi

Honors Projects

The ability of homing pigeons to return to their loft from unknown places has fascinated scientists for centuries. It is well established that homing pigeons, like migratory birds, posses an innate magnetic inclination compass to determine direction by measuring the angle between the magnetic field vector and the Earth's surface. Recent work has indicated that the avian magnetic compass is light mediated and appears to mediate magnetic information to the brain. This occurs via a visual pathway with processing in the visual Wulst area of the forebrain. There is, however, also evidence from other avian species that magnetic direction may …


Does Breastfeeding Offer Protection Against Maternal Depressive Symptomatology? A Prospective Study From Pregnancy To 2 Years After Birth, Jennifer Hahn-Holbrook, Martie G. Haselton, Christine Dunkel Schetter, Laura M. Glynn Jan 2013

Does Breastfeeding Offer Protection Against Maternal Depressive Symptomatology? A Prospective Study From Pregnancy To 2 Years After Birth, Jennifer Hahn-Holbrook, Martie G. Haselton, Christine Dunkel Schetter, Laura M. Glynn

Psychology Faculty Articles and Research

Depression is the leading cause of disability in women (Nobel 2005) and is the most prevalent of all childbearing-related illnesses, affecting approximately 13% of women worldwide within the first 12 [...] Mothers who breastfeed typically exhibit lower levels of depressive symptomatology than mothers who do not. However, very few studies have investigated the directionality of this relationship. Of the prospective studies published, all but one focus exclusively on whether maternal depression reduces rates of subsequent breastfeeding. This study again examines this relationship, but also the reverse--that breastfeeding might predict lower levels of later depression. Using multilevel modeling, we investigated the …


Drug–Drug Conditioning Between Citalopram And Haloperidol Or Olanzapine In A Conditioned Avoidance Response Model: Implications For Polypharmacy In Schizophrenia, Nathan L. Sparkman, Ming Li Oct 2012

Drug–Drug Conditioning Between Citalopram And Haloperidol Or Olanzapine In A Conditioned Avoidance Response Model: Implications For Polypharmacy In Schizophrenia, Nathan L. Sparkman, Ming Li

Department of Psychology: Faculty Publications

Patients with schizophrenia often have anxiety and depression, and thus are treated with multiple psychotherapeutic medications. This practice of polypharmacy increases the possibility for drug–drug interactions. However, the pharmacological and behavioral mechanisms underlying drug–drug interactions in schizophrenia remain poorly understood. In the present study, we adopted a preclinical approach and examined a less known behavioral mechanism, drug–drug conditioning (DDC) between haloperidol (a typical antipsychotic) or olanzapine (atypical antipsychotic) and citalopram (a selective serotonin reuptake inhibitor). A rat two-way conditioned avoidance response paradigm was used to measure antipsychotic activity and determine how DDC may alter the antipsychotic efficacy in this model. …


Randomized Clinical Trial Of Cognitive Behavioral Therapy (Cbt) Versus Acceptance And Commitment Therapy (Act) For Mixed Anxiety Disorders, Joanna Arch, Georg Eifert, Carolyn Davies, Jennifer C. Plumb Vilardaga, Raphael D. Rose, Michael G. Craske Oct 2012

Randomized Clinical Trial Of Cognitive Behavioral Therapy (Cbt) Versus Acceptance And Commitment Therapy (Act) For Mixed Anxiety Disorders, Joanna Arch, Georg Eifert, Carolyn Davies, Jennifer C. Plumb Vilardaga, Raphael D. Rose, Michael G. Craske

Psychology Faculty Articles and Research

Objective—Randomized comparisons of acceptance-based treatments with traditional cognitive behavioral therapy (CBT) for anxiety disorders are lacking. To address this research gap, we compared acceptance and commitment therapy (ACT) to CBT for heterogeneous anxiety disorders.

Method—One hundred twenty eight individuals (52% female, mean age = 38, 33% minority) with one or more DSM-IV anxiety disorders began treatment following randomization to 12 sessions of CBT or ACT; both treatments included behavioral exposure. Assessments at pre-treatment, post-treatment, 6-month, and 12-month follow-up measured anxiety specific (principal disorder Clinical Severity Ratings [CSR], Anxiety Sensitivity Index, Penn State Worry Questionnaire, Fear Questionnaire avoidance) and …


Dance/Movement Therapy And Autism: A Case Study, Katherine Ann Porter Aug 2012

Dance/Movement Therapy And Autism: A Case Study, Katherine Ann Porter

Creative Arts Therapies Theses

This thesis explores the development of the therapeutic relationship with a child with autism through dance/movement therapy. The characteristics of Autism Spectrum Disorder effect social interactions, communication, behavior and interests. This means there is difficulty engaging and maintaining reciprocal social interactions, and trouble with receptive and expressive language. The purpose of this study is to describe how movement mirroring in dance/movement therapy affects the development of the therapeutic relationship with a child with autism, through the analysis of the Ways of Seeing approach.

The data collected in this clinical case study consisted of video tapped sessions and Laban Movement Analysis …


The Ratio Of Positive To Negative Affect, Flourishing, And Health Behavior, Michael Stuart Leibow Aug 2012

The Ratio Of Positive To Negative Affect, Flourishing, And Health Behavior, Michael Stuart Leibow

Loma Linda University Electronic Theses, Dissertations & Projects

The ratio between positive and negative affect, known as the positivity ratio (PR) is thought to be associated with flourishing (psychological and social well-being). However, little research has been done on how PR and flourishing relate to specific health behaviors. The relationships between PR and flourishing with health behavior i.e., physical activity, and diet (fruit, leafy green vegetables [LGV] and meat intake) were investigated in this study. We examined whether PR mediated the relationship between flourishing and health behaviors, and whether flourishing mediated the relationship between PR and these behaviors. Gender and ethnic differences for the above associations were examined …


A Punishment-Free, Toilet-Training Protocol For Children With Developmental Disabilities, Chelsea Lynn Pearsall Jan 2012

A Punishment-Free, Toilet-Training Protocol For Children With Developmental Disabilities, Chelsea Lynn Pearsall

All Master's Theses

The present investigation adapted a behaviorally-based toilet-training protocol for use with two male children with developmental disabilities. Positive practice and verbal reprimands were eliminated, and reinforcement, scheduled sits, and a urine alarm were utilized. Data were collected on the number of intoilet urinations, urinary accidents, and self-initiations. Results show that both participants exhibited significant improvement in their toileting skills and met the final success criteria rapidly. These results were maintained through follow-up. Implications for the elimination of punishment procedures in future toilet training protocols are discussed.


Conditioned Response Evoked By Nicotine Conditioned Stimulus Preferentially Induces C-Fos Expression In Medial Regions Of Caudate-Putamen, Sergios Charntikov, Matthew E. Tracy, Changjiu Zhao, Ming Li, Rick A. Bevins Jan 2012

Conditioned Response Evoked By Nicotine Conditioned Stimulus Preferentially Induces C-Fos Expression In Medial Regions Of Caudate-Putamen, Sergios Charntikov, Matthew E. Tracy, Changjiu Zhao, Ming Li, Rick A. Bevins

Department of Psychology: Faculty Publications

Nicotine has both unconditioned and conditioned stimulus properties. Conditioned stimulus properties of nicotine may contribute to the tenacity of nicotine addiction. The purpose of this experiment was to use neurohistochemical analysis of rapidly developing c-Fos protein to elucidate neurobiological loci involved in the processing of nicotine as an interoceptive conditioned stimulus (CS). Rats were injected (SC) in an intermixed fashion with saline or nicotine (16 sessions of each) and placed in conditioning chambers where they were given one of the three conditions depending on group assignment: (a) nicotine paired 100% of the time with intermittent access to sucrose (nicotine-CS condition), …


Motivation, Need Support And Need Satisfaction In Youth Soccer Players, Erica Lippitt Jan 2012

Motivation, Need Support And Need Satisfaction In Youth Soccer Players, Erica Lippitt

College of Graduate Studies: Theses & Dissertations

Author's abstract: Physical activity levels and obesity rates vary greatly across ethnic groups in the United States (CDC, 2011). One popular way to increase physical activity levels in youth is through youth sport participation, which may be influenced by athlete motivation. Numerous studies have determined motivation levels in youth sport participants, but very little done in comparing levels across different ethnic groups. Identifying differences in motivation levels based on ethnicity can allow coaches and sport administrators to adjust practices and program setups to increase participation and meet needs of player competence. The purpose of the study was to determine if …


Neurochemical Effects Of Amyloid-Beta Oligomers In Rats, John J. Panos Dec 2010

Neurochemical Effects Of Amyloid-Beta Oligomers In Rats, John J. Panos

Dissertations

Alzheimer’s disease is a progressive neurodegenerative disease characterized by memory loss and cognitive decline. Although the symptomology of Alzheimer’s disease is well defined, its precise etiology remains elusive. Animal models are invaluable for understanding the pathogenesis of this devastating disease. Knowledge of the neurochemical actions of amyloid-β oligomers in specific brain structures is essential for validating animal models of Alzheimer’s disease and for determining the most appropriate behavioral assays of memory. The specific aim of this project was to investigate the neurochemical effects of direct intracerebral infusion of amyloid-β oligomers in the rat. Experiment 1 investigated direct infusions of synthetic …


Spirituality, Religiosity, And Weight Management In Black Women, Shené L. Bowie Oct 2010

Spirituality, Religiosity, And Weight Management In Black Women, Shené L. Bowie

Loma Linda University Electronic Theses, Dissertations & Projects

Background

Obesity is a major concern in the United States and Black Americans are among those with the highest rates of overweight, obesity, and related co- morbidities. While weight loss among Black women has been studied within the context of a faith-based setting, there is little information about the relationship between spirituality, or relationship with the transcendent, and self-efficacy in the achievement and maintenance of a healthy weight.

Purpose

The purpose of this study was to analyze the relationships among spirituality, self-efficacy for physical activity and healthy eating, and body composition measures among Black women over the period of participation …


Effect Of Depression On Attention Via Mood Induction In A Healthy Population, Cheryl Mae Calvano Jun 2010

Effect Of Depression On Attention Via Mood Induction In A Healthy Population, Cheryl Mae Calvano

Loma Linda University Electronic Theses, Dissertations & Projects

This project continues research into the cognitive attention of persons with a sad mood similar to that experienced by dysthymia. The project utilizes the Dot Probe Task to evaluate attention to affective stimuli presented in the International Affective Picture Set (IAPS). Participants were psychology students recruited from La Sierra University. Participants completed a word task that intended to induce a sad or neutral mood. The Positive and Negative Affect Scale (PANAS) was used to evaluate the efficacy of the mood induction. Overall, participant’s negative PANAS scale did not differ between groups. Groups differed between administrations of the PANAS on the …


Assessing Perfectionism And Coping In Athletes, Kirsten Hengstler May 2010

Assessing Perfectionism And Coping In Athletes, Kirsten Hengstler

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.


Locus Of Control And The Age Difference In Free Recall From Episodic Memory, Paul Amrhein, Judith K. Bond, Derek Hamilton Mar 2010

Locus Of Control And The Age Difference In Free Recall From Episodic Memory, Paul Amrhein, Judith K. Bond, Derek Hamilton

Department of Psychology Faculty Scholarship and Creative Works

The authors investigated the relation of locus of control (LOC) to age differences in free-recall memory performance. Older and younger participants completed P. C. Duttweiler's (1984) Internal Control Index (ICI) and subsequently performed free-recall memory tasks. Compared with the younger participants, the older participants exhibited poorer recall with more intrusions and uncorrected repetition errors as well as reduced categorical clustering. For the older participants with less internal LOC, recall proportion and item-pair associative recall clustering were lower than for the older participants with more internal LOC. By contrast, the younger participants did not exhibit any LOC effects in their recall …


Psychometric Properties Of The Psychopathic Personality Inventory In A Non-Criminal Population, Julie Madeleine Woltil Mar 2010

Psychometric Properties Of The Psychopathic Personality Inventory In A Non-Criminal Population, Julie Madeleine Woltil

Loma Linda University Electronic Theses, Dissertations & Projects

The Psychopathic Personality Inventory (PPI) is a self-report measure which was created to identify the personality traits of psychopathy in noncriminal populations. These personality traits were grouped into eight subscales in the PPI including Machiavellian Egocentricity, Social Potency, Coldheartedness, Carefree Nonplanfulness, Fearlessness, Blame Externalization, Impulsive Nonconformity and Stress Immunity. The hypothesized relationships and factor structure of this study follow the theory of psychopathy as being a disorder rooted in antisocial behaviors (often aggressive and impulsive in nature) and inappropriate emotional reactivity (characterized as a lack in empathy and anxiety). A confirmatory factor analysis was done with an ethnically diverse undergraduate …


Effects Of Patient Trauma On Hospital Staff Functioning: An Exploratory Study Of Psychological Distress Resulting From Trauma Exposure, Randy Allen Braley Jan 2010

Effects Of Patient Trauma On Hospital Staff Functioning: An Exploratory Study Of Psychological Distress Resulting From Trauma Exposure, Randy Allen Braley

Electronic Theses and Dissertations

The present study attempted to determine the relationship between exposure to traumatic experiences of hospitalized children and adolescents and the development of secondary traumatic stress, also known as compassion fatigue, vicarious traumatization, or burnout in clinical staff working with such patients. Hierarchical regression was used to test the hypotheses that: clinical treatment staff will experience higher levels of psychological distress following exposure to patient trauma and previous lifetime trauma events; clinical treatment staff will experience quality of patient relationships associated with the degree of exposure to patient trauma, previous lifetime or work-related trauma history, and level of supervisor support; clinical …


Comparison Of Rationally-Derived And Empirically-Derived Methods For Predicting Failure In Residential Treatment, Jennifer Pester Grattan Sep 2009

Comparison Of Rationally-Derived And Empirically-Derived Methods For Predicting Failure In Residential Treatment, Jennifer Pester Grattan

Loma Linda University Electronic Theses, Dissertations & Projects

Patient-focused research methods have been used in adult mental health treatment to improve outcomes by tracking individual treatment response and comparing it with expected recovery patterns. One such approach has used rationally- and empirically-derived methods to analyze data from the OQ-45 and identify patients who are not responding as expected to treatment. Treatment is then adjusted, improving outcomes and lowering overall costs.

Similar but less extensive research has shown analogous methods can be used with children and adolescents. This would be particularly useful in residential treatment, which is an expensive and inadequately researched approach. This study used archival data gathered …


Examining The Relationships Between Parental Efficacy, Parenting Styles And Repetitive Behaviors In Children With Autism, James R. Carrillo Aug 2009

Examining The Relationships Between Parental Efficacy, Parenting Styles And Repetitive Behaviors In Children With Autism, James R. Carrillo

Graduate Theses

The purpose of this study was to examine the relationships between parental efficacy, parenting styles and stereotypical behaviors exhibited by children with autism. Fourteen mothers and their children with autism (ages 14-21) were recruited from local schools and the rehabilitation center. Surveys used in this study included the Repetitive Behavior Scale-Revised (RBS-R), Parents Sense of Competence (PSOC) and the Parents Locus of Control (PLOC) scale. Also incorporated was the Autism Diagnostic Observation Schedule (ADOS). Even though there was no correlation between the PLOC and stereotypical behaviors of the RBS-R, results revealed a significant relationship between the PSOC and the RBS-R. …


Accuracy Of A Rationally-Derived Method For Predicting Failure In Residential Treatment, Jennifer Pester Grattan Jun 2009

Accuracy Of A Rationally-Derived Method For Predicting Failure In Residential Treatment, Jennifer Pester Grattan

Loma Linda University Electronic Theses, Dissertations & Projects

Recent studies of adult mental health treatment have used patient-focused research methods to improve outcomes, by tracking treatment response and comparing it with expected recovery patterns. One such line of research has used rationally-derived and empirically-derived methods to analyze data gathered by the OQ-45 and identify patients who are not responding as expected to treatment. This allows for adjustment of treatment, which results in improved outcomes and lower overall costs.

Similar but less extensive research has provided evidence that these approaches may also improve outcomes in outpatient treatment for children and adolescents. These approaches might be particularly useful in residential …


To See Or Not To See: Prestimulus Α Phase Predicts Visual Awareness, Kyle E. Mathewson, Gabriele Gratton, Monica Fabiani, Diane M. Beck, Tony Ro Mar 2009

To See Or Not To See: Prestimulus Α Phase Predicts Visual Awareness, Kyle E. Mathewson, Gabriele Gratton, Monica Fabiani, Diane M. Beck, Tony Ro

Publications and Research

We often fail to see something that at other times is readily detectable. Because the visual stimulus itself is unchanged, this variability in conscious awareness is likely related to changes in the brain. Here we show that the phase of EEG α rhythm measured over posterior brain regions can reliably predict both subsequent visual detection and stimulus-elicited cortical activation levels in a metacontrast masking paradigm. When a visual target presentation coincides with the trough of an α wave, cortical activation is suppressed as early as 100 ms after stimulus onset, and observers are less likely to detect the target. Thus, …