131 research outputs found
Individual differences in upright and inverted face recognition, simultaneous face matching and object recognition ability throughout the adult lifespan
Objectives: Superior face recognition ability is important for policing and other security roles, and selection of suitable staff for certain operations is essential. Age may be a factor. Our research aims were to enhance theoretical understanding of the relationship between different visual processing tasks, as well as to examine whether the normal mid-thirties peak in face recognition ability would transfer to alternative forensically-relevant face processing tests.
Design: Correlational designs examined the relationships between upright and inverted face recognition, simultaneous face matching, object recognition and age in Experiment 1; and face matching CCTV images, passport images and age in Experiment 2.
Methods: Worldwide media articles led to participants (n = 250,000) completing a ‘could you be a super-recogniser?’ teaser-test, and in Experiment 1, teaser-test high performers (n = 20,000+; 18-76 years-old) were recruited. In Experiment 2, participants (n = 5,000+) included Metropolitan Police ‘super-recognisers’.
Results: Performances across all tests correlated. Face recognition ability peaked at approximately 34-years; face matching high-quality images at 36. Performance subsequently declined. In contrast, the face inversion effect positively correlated with age, while object recognition ability remained consistent throughout the lifespan. No reliable peak age was found for CCTV and passport image matching.
Conclusions: The optimum age for high performance (including police officers) on forensic facial examination and recognition tasks appears to be the mid-thirties. Regardless of age, some exceptional participants made few errors on any task, and discussion will focus on these individuals, as well as how high performers in the police positively impact investigations
The impact of developmental dyslexia on workplace cognition: Evidence from a virtual reality environment.
The cognitive difficulties associated with dyslexia persist into adulthood but insights into their impact in employment settings are lacking. A virtual office environment was used to assess two areas of cognition frequently called upon in the workplace, executive function and prospective memory. Eight adults with dyslexia and 27 adults without dyslexia were tested on a virtual office task. They read a scenario describing their new role in an office and were given tasks to complete. The group with dyslexia performed worse overall. On the individual performance measures, the group with dyslexia scored lower on the selective-thinking and planning measures of executive function and also performed worse on two of the three prospective memory measures, namely event-based and time-based prospective memory. The findings indicate how dyslexia can affect workplace cognition, identifying areas in which support might be needed and highlighting areas of relative strength which might be harnessed
Hebrew version of the Jansari assessment of Executive Functions for Children (JEF-C©): translation, adaptation and validation
The Jansari assessment of Executive Functions for Children (JEF-C©) is a non-immersive computerized assessment of executive functions (EFs). This study aimed to create a cross-culturally adapted Hebrew version, JEF-C(H)© and to assess reliability and validity in the Israeli context. Forty typically developing Israeli children and adolescents, aged 11–18 years, were assessed with JEF-C(H)©. In addition, participants and their parents filled in the Behaviour Rating Inventory of Executive Function (BRIEF). JEF-C(H)© was found to be feasible in Israeli children and adolescents. The internal consistency was acceptable (Cronbach’s alpha = 0.79). Most of the JEF-C(H)© subtests and the Average score showed significant positive moderate to high correlations with age, ranging from 0.40 to 0.78 demonstrating construct validity. Multiple significant correlations were also found between the JEF-C(H)© Average score and the BRIEF indices as well as total score in the Parent and Self-report questionnaires. These preliminary findings support the reliability and validity of this version. Current findings demonstrate the potential clinical utility of JEF-C(H)© as an ecologically valid tool for Israeli children and adolescents in the assessment of EFs
The Experience of Music in Aphantasia: Emotion, Reward, and Everyday Functions
Visual imagery has been proposed to be one of eight mechanisms by which music induces emotion in listeners. Initial research into aphantasia, a condition referring to individuals who do not (or only minimally) form visual imagery in their mind's eye, suggests that aphantasics may experience reduced emotional experiences in response to imagined stimuli. In this two-part online investigation, we sought to explore the emotional experiences of aphantasics within the context of music listening. In Survey 1, we compared 51 aphantasics to 51 control individuals in terms of their experiences of visual imagery, liking, and felt emotional intensity when listening to three film music excerpts. We found significant group differences in terms of visual imagery and felt emotional intensity, but not liking. In Survey 2, we examined aphantasics’ ability to recognize emotions conveyed by music, and their patterns of experience of, and engagement with, music in everyday life by comparing the responses of 29 aphantasics with 29 matched controls. We found no differences in terms of emotion discrimination ability. However, aphantasics generally experienced less Reminiscence (dimension from the Adaptive Functions of Music Listening scale) to music, as well as fewer Episodic Memories (dimension from the MecScale). Aphantasics and control listeners did not exhibit differences in terms of sensitivity to musical reward (measured using the BMRQ) or in terms of musical sophistication (measured using the Gold-MSI). Finally, our findings suggest nuanced differences between controls and those with pure and minimal aphantasia. In all, we reveal the influence that aphantasia can have on emotional responses to music and thus provide further evidence for the relationship between visual imagery and music-induced emotion.Peer Reviewe
Detecting the onset of accelerated long-term forgetting: evidence from temporal lobe epilepsy
Accelerated long-term forgetting (ALF) refers to a slowly developing anterograde amnesia in which material is retained normally over short delays but then forgotten at an abnormally fast rate over days to weeks. Such long-term memory impairment is not detected by standard clinical tests. This study analysed ALF in a temporal lobe epileptic, RY. Key issues addressed were: (i) the timeframe of ALF onset; (ii) whether disruption of memory consolidation during sleep is a necessary requirement for precipitating ALF; (iii) the effectiveness of repeated recall in limiting the impact of ALF. RY's memory for novel word-pairings was compared with that of matched controls using cued-recall and forced choice recognition (FCR) tests at multiple delays (5, 30, 55, 240 min). To investigate the impact of repeated recall some pairings were recalled at all intervals, and all material (repeatedly and non-repeatedly recalled) was tested again after a 24 h delay. RY's initial learning and performance at 30 min were normal, but by 55 min both his cued-recall performance and the subjective quality of his recognition memory were significantly impaired. This suggests disruption of secondary consolidation processes occurring relatively soon after learning. It also raises the possibility of developing a standard test to diagnose ALF within a single clinical session rather than requiring multiple visits. Since RY remained awake it appears that disruption of memory consolidation during sleep is not a necessary condition for him to experience ALF. Repeated recall at multiple time-points within the first 4 h sustained normal recall performance to 24 h, indicating repeated recall could form the basis for a protective strategy
Acquired synaesthesia following 2C-B use
Psychedelic drugs reliably trigger experiences that closely resemble synaesthesia (Luke and Terhune 2013), a condition in which inducer stimuli will reliably and automatically elicit atypical concurrent experiences (Ward 2013). These transient episodes are considered controversial because they do not meet behavioural diagnostic criteria for developmental synaesthesia (Terhune et al. 2016). However, if these behavioural markers are attributable to the consolidation of synaesthetic associations over time (Terhune et al. 2016), they should be observed in cases of acquired synaesthesia. Here we report a case of drug-induced acquired synaesthesia (LW) that meets standard diagnostic criteria for developmental synaesthesia
Accelerated forgetting in healthy older samples: Implications for methodology, future ageing studies, and early identification of risk of dementia
Accelerated long-term forgetting (ALF) has been reported in healthy older individuals, and is a possible early marker for risk of developing Alzheimer’s disease (AD). The Verbal Associative Learning & Memory Test (VALMT; McGibbon & Jansari, 2013) addresses methodological weaknesses in existing clinical tests and has detected ALF in epilepsy within an hour. We used VALMT to investigate learning and forgetting in healthy older participants. Older (60-69yrs) and Younger (19-31yrs) participants were compared. Using VALMT, unrelated word-pairs were learnt to criterion, then cued-recall tested at delays of 5, 30 and 55 minutes. Unique pairs were tested at each delay. Subjective memory complaints data was gathered, and the Wechsler Memory Scale Logical Memory test (WMS-LM; a standard clinical measure) was administered. VALMT identified a significant difference in delayed recall between Younger and Older groups by 55 minutes (d = 1.32). While ‘fast-learning’ Older participants scored similarly to Younger participants, ‘slow-learning’ Older participants were impaired at all delays. Forgetting rates suggested degradation of memory starts during early synaptic consolidation rather than later system-level consolidation. Increased subjective memory complaints were associated with reduced VALMT scores. By contrast, WMS-LM failed to identify significant differences between any groups, and did not correlate with memory complaints. We conclude VALMT may be better able than WMS-LM to identify subtle impairments in healthy older adults within a single clinical visit, and VALMT results better reflect subjective experience. Older slow-learners forget faster and report more subjective memory complaints, which may indicate a group at risk of developing AD
NHS Ethics: Shoe-bombers and why ‘less needs to be more’
Neuropsychological research poses several challenges. Some of these, such as developing new ideas and conducting innovative studies, are approached with great enthusiasm, and are an integral and motivating part of academic research. By contrast, other challenges feel like gruelling, near-impossible tasks, designed to test the will of would-be researchers. For many, the process of obtaining UK National Health Service (NHS) ethics approval is the archetypal example of such a task. Baron (this issue) highlights several of the difficulties concerning the ethical review of research involving human subjects, identifying flaws in the current system, and their negative impact on the research process. In this commentary we further reflect on the current system for gaining ethics approval to work with brain-injured patients in the UK, and its implications for neuropsychology research in the UK and beyond
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