Memory impairment and Benign Epilepsy with centrotemporal spike (BECTS): A growing suspicion

Benign Epilepsy with centrotemporal spikes (BECTS) is considered a benign type of epilepsy; nevertheless a significant number of children present clear and heterogeneous cognitive deficits such as memory disturbances. Thus far, evidence about memory impairment has been less than conclusive. To clarify the quality of memory functioning in BECTS children, an analysis of existing findings has been conducted trying to identify the type of memory deficits and their underlying factors. Short- and long-term declarative memory are impaired in BECTS children, with both verbal and non-verbal material; co-occurrence of attentional, linguistic and behavioral disturbances is reported. In children with continuous spikes and waves during the slow-wave sleep pattern the normal downscaling of slow-wave activity is absent, disrupting plastic brain processes of sleep-related memory consolidation. In BECTS children, NREM sleep interictal epileptiform discharges (IED) may interfere in the dialogue between temporal and frontal cortex, causing declarative memory deficits: the role of NREM sleep IED acquires a special importance, leading to methodological guidance and suggesting aims for future researches in the field of childhood neuroscience.     

Effects of deterrence on intensity of group identification and efforts to protect group identity

Group identification serves important functions such as motivating group members to work towards group goals and sustaining their efforts to maintain a positive group identity. Thus increasing or decreasing group identification has implications for group members’ commitment to achieving group goals. We propose that group identification and group-level efforts to protect group identity can be reduced or enhanced by deterrents to feeling identified with the ingroup. To test this idea, we exposed participants to different types of deterrents to group identification: a reason for not liking the ingroup (Study 1), difficulty of achieving an ingroup goal (Study 2), and a threat to ingroup positive identity (Study 3). Group identification and strength of efforts to achieve a group goal increased with the strength of deterrence, to the point where it decreased in the strong deterrent condition. Implications for intergroup motivation and social identity are discussed.     

Progression and Verification of Situation Calculus Agents with Bounded Beliefs

We investigate agents that have incomplete information and make decisions based on their beliefs expressed as situation calculus bounded action theories. Such theories have an infinite object domain, but the number of objects that belong to fluents at each time point is bounded by a given constant. Recently, it has been shown that verifying temporal properties over such theories is decidable. We take a first-person view and use the theory to capture what the agent believes about the domain of interest and the actions affecting it. In this paper, we study verification of temporal properties over online executions. These are executions resulting from agents performing only actions that are feasible according to their beliefs. To do so, we first examine progression, which captures belief state update resulting from actions in the situation calculus. We show that, for bounded action theories, progression, and hence belief states, can always be represented as a bounded first-order logic theory. Then, based on this result, we prove decidability of temporal verification over online executions for bounded action theories.     

Yearning and Its Measurement in Complicated Grief

Persistent intense yearning for the deceased is a core clinical feature of complicated grief (CG) that distinguishes it from other mental disorders that develop following loss. The Yearning in Situations of Loss Scale (YSL) is a recently developed assessment of yearning. To assess the psychometric properties of the YSL in those with CG, we administered the YSL, Inventory of Complicated Grief, and Quick Inventory of Depression Symptomatology to 303 treatment-seeking bereaved adults with CG. Our results suggest the YSL is a reliable assessment with acceptable convergent and discriminant validity as a measure of yearning in those with CG.     

Spatial cognition: evidence from visual neglect

Recent work on human attention and representational systems has benefited from a growing interplay between research on normal attention and neuropsychological disorders such as visual neglect. Research over the past 30 years has convincingly shown that, far from being a unitary condition, neglect is a protean disorder whose symptoms can selectively affect different sensory modalities, cognitive processes, spatial domains and coordinate systems. These clinical findings, together with those of functional neuroimaging, have increased knowledge about the anatomical and functional architecture of normal subsystems involved in spatial cognition. We provide a selective overview of how recent investigations of visual neglect are beginning to elucidate the underlying structure of spatial processes and mental representations.     

The Bears Family Projective Test: evaluating stories of children with emotional difficulties

The aim of this study was to describe and analyze the storytelling of children with emotional difficulties. Forty children with emotional and relational difficulties (inhibited and impulsive), ages between 5.5 and 9.4 years old, were assessed by a multiaxial procedure and the bears family projective test. The bears family test is a constructive-thematic-projective method based on an anthropomorphic family of bears that children can manipulate to tell a story. The stories of 40 children without emotional difficulties (matched by IQ, socio-economic status, and gender) and 322 typically developing children, aged between four and 10 years old, were used as a reference for comparisons. Results indicated that the stories of children with emotional difficulties showed many unsolved problematic events, unclear characters, negative relationships, and negative behaviors. Unlike the stories of children without emotional difficulties, positive contents didn't prevail over negative, and there wasn't a positive compensation for negative elements.